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Chai YF, Lin HB, Ding GH, Wang JW, Wang HY, Peng SY, Gao BX, Deng XW, Kong GL, Bao BY, Zhang LX. [Prevalence and treatment of anemia in chronic kidney disease patients based on regional medical big data]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1046-1053. [PMID: 37482705 DOI: 10.3760/cma.j.cn112338-20221201-01028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Objective: To assess the prevalence, risk factors and treatment of anemia in patients with chronic kidney disease (CKD). Methods: A descriptive method was used to analyze the prevalence and treatment of anemia in CKD patients based on regional health data in Yinzhou District of Ningbo during 2012-2018. The multivariate logistic regression analysis was used to identify independent influence factors of anemia in the CKD patients. Results: In 52 619 CKD patients, 15 639 suffered from by anemia (29.72%), in whom 5 461 were men (26.41%) and 10 178 were women (31.87%), and anemia prevalence was higher in women than in men, the difference was significant (P<0.001). The prevalence of anemia increased with stage of CKD (24.77% in stage 1 vs. 69.42% in stage 5, trend χ2 test P<0.001). Multivariate logistic regression analysis revealed that being women (aOR=1.57, 95%CI: 1.50-1.63), CKD stage (stage 2: aOR=1.10, 95%CI: 1.04-1.16;stage 3: aOR=2.28,95%CI: 2.12-2.44;stage 4: aOR=4.49,95%CI :3.79-5.32;stage 5: aOR=6.31,95%CI: 4.74-8.39), age (18-30 years old: aOR=2.40,95%CI: 2.24-2.57, 61-75 years old: aOR=1.35,95%CI:1.28-1.42, ≥76 years old: aOR=2.37,95%CI:2.20-2.55), BMI (<18.5 kg/m2:aOR=1.29,95%CI: 1.18-1.41;23.0-24.9 kg/m2:aOR=0.79,95%CI: 0.75-0.83;≥25.0 kg/m2:aOR=0.70,95%CI: 0.66-0.74), abdominal obesity (aOR=0.91, 95%CI: 0.86-0.96), chronic obstructive pulmonary disease (aOR=1.15, 95%CI: 1.09-1.22), cancer (aOR=3.03, 95%CI: 2.84-3.23), heart failure (aOR=1.44, 95%CI: 1.35-1.54) and myocardial infarction (aOR=1.54, 95%CI:1.16-2.04) were independent risk factors of anemia in CKD patients. Among stage 3-5 CKD patients with anemia, 12.03% received iron therapy, and 4.78% received treatment with erythropoiesis-stimulating agent (ESA) within 12 months after anemia was diagnosed. Conclusions: The prevalence of anemia in CKD patients was high in Yinzhou. However, the treatment rate of iron therapy and ESA were low. More attention should be paid to the anemia management and treatment in CKD patients.
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Affiliation(s)
- Y F Chai
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China National Institute of Health Data Science, Peking University, Beijing 100191,China
| | - H B Lin
- Yinzhou District Center for Disease Control and Prevention of Ningbo, Ningbo 315199, China
| | - G H Ding
- School of Computer Science, Shenyang Aerospace University, Shenyang 110136, China
| | - J W Wang
- Department of Nephrology, Peking University First Hospital, Beijing 100034, China
| | - H Y Wang
- National Institute of Health Data Science, Peking University, Beijing 100191,China
| | - S Y Peng
- National Institute of Health Data Science, Peking University, Beijing 100191,China
| | - B X Gao
- Department of Nephrology, Peking University First Hospital, Beijing 100034, China
| | - X W Deng
- Department of Nephrology, Peking University First Hospital, Beijing 100034, China
| | - G L Kong
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China National Institute of Health Data Science, Peking University, Beijing 100191,China
| | - B Y Bao
- Ningbo Urology and Nephrology Hospital, Ningbo 315100, China
| | - L X Zhang
- National Institute of Health Data Science, Peking University, Beijing 100191,China Department of Nephrology, Peking University First Hospital, Beijing 100034, China
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Xin YW, Chai YF, Yao YM. [Advances in the research of the relationship between skin regulatory T cells and wound healing and immune diseases]. Zhonghua Shao Shang Za Zhi 2020; 36:156-160. [PMID: 32114737 DOI: 10.3760/cma.j.issn.1009-2587.2020.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
As the body's largest organ, skin harbors a large amount of immune cells to regulate both innate and adaptive immune responses. Regulatory T cells (Tregs), as a subset of T lymphocytes with negative regulatory functions, play an important role in maintaining the immune homeostasis of different tissue. However, researches of skin Tregs are largely limited and uncompleted as compared with other tissue. In recent years, a comprehensive understanding is increasingly showing the specialized functions of Tregs in skin, including the orchestration of tissue wound healing, involvement in hair follicle recycling, and modulation of proper immune homeostasis. In this review, we outline the classification and characteristics of Tregs in skin, distribution, migration routes, immune effects, and relationship with wound healing, which aims to deepening our understanding towards the immunological effects of T lymphocytes subsets in skin and its regulatory pathways.
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Affiliation(s)
- Y W Xin
- Emergency Department of General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Y F Chai
- Emergency Department of General Hospital, Tianjin Medical University, Tianjin 300052, China
| | - Y M Yao
- Trauma Research Center, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
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Wen J, Fan GR, Hong ZY, Chai YF, Yin XP, Wu YT, Sheng CQ, Zhang WN. High performance liquid chromatographic determination of a new antifungal compound, ADKZ in rat plasma. J Pharm Biomed Anal 2007; 43:655-8. [PMID: 16950589 DOI: 10.1016/j.jpba.2006.07.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Revised: 07/22/2006] [Accepted: 07/25/2006] [Indexed: 11/20/2022]
Abstract
A high performance liquid chromatography (HPLC) method was developed and validated for the determination of ADKZ (1-(1H-1,2,4-triazole)-2-(2,4-diflurophenyl) -3-[N-methyl-N-(4-iodo-benzyl)amino]-2-propanol) in rat plasma. The compound was extracted from plasma samples by liquid-liquid extraction, and an isomeric compound of ADKZ (1-(1H-1,2,4-triazole)-2-(2,4-diflurophenyl)-3-[N-methyl-N -(3-iodo-benzyl)amino]-2-propanol) was used as the internal standard (IS), which were analyzed on a reversed-phase C18 column (5 microm, 200 mm x 4.6 mm i.d.). The extracted plasma samples were eluted with acetonitrile-0.018 M triethylamine solution adjusted to pH 3.2 with phosphoric acid (35:65, v/v). The effluent was monitored by a UV detector at 230 nm. The retention time of ADKZ was 7.1 min and IS 8.2 min. The calibration curves were linear in the concentration range of 0.02-2.00 microg/ml with the correlation coefficients greater than 0.999. The quantification limit of ADKZ in rat plasma was 0.02 microg/ml. Intra- and inter-day precision ranged from 2.6 to 7.9% and 3.1 to 9.6%, respectively. The extraction recovery from plasma was no less than 80%. No endogenous interferences were observed with either ADKZ or IS. The method has been successfully used to support the pre-clinical pharmacokinetic studies of ADKZ in rats.
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Affiliation(s)
- J Wen
- Shanghai Key Laboratory for Pharmaceutical Metabolites Research, School of Pharmacy, Second Military Medical University, No. 325 Guohe Road, Shanghai 200433, PR China
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Hong ZY, Fan GR, Chai YF, Yin XP, Wen J, Wu YT. Chiral liquid chromatography resolution and stereoselective pharmacokinetic study of tetrahydropalmatine enantiomers in dogs. J Chromatogr B Analyt Technol Biomed Life Sci 2005; 826:108-13. [PMID: 16165405 DOI: 10.1016/j.jchromb.2005.08.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2004] [Revised: 07/22/2005] [Accepted: 08/16/2005] [Indexed: 11/20/2022]
Abstract
A selective chiral high performance liquid chromatographic (HPLC) method coupled with achiral column was developed and validated to separate and quantify tetrahydropalmatine (THP) enantiomers in dog plasma. Chromatography was accomplished by two steps: (1) racemic THP was separated from biological matrix and collected on a Kromasil C18 column (150 mmx4.6 mm, 5 microm) with the mobile phase acetonitrile-0.1% phosphoric acid solution, adjusted with triethylamine to pH 6.15 (47:53); (2) enantiomeric separation was performed on a Chiralcel OJ-H column (250 mmx4.6 mm, 5 microm) with the mobile phase anhydrous ethanol. The detection wavelength was set at 230 nm. (+)-THP and (-)-THP were separated with a resolution factor (Rs) of at least 1.6 and a separation factor (alpha) greater than 1.29. Linear calibration curves were obtained over the range of 0.025-4 microg/ml in plasma for each of (+)-THP and (-)-THP (R2>0.999) with a limit of detection (LOD) of 0.005 microg/ml and the recovery was greater than 88% for each enantiomer. The relative standard deviation (R.S.D.) and relative error values were less than 10% at upper and lower concentrations. The method was used to determine the pharmacokinetics of THP enantiomers after oral administration of racemic THP. The results presented herein showed the stereoselective disposition kinetics of THP in dogs and were a further contribution to the understanding of the kinetic behavior of THP analogues.
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Affiliation(s)
- Z Y Hong
- School of Pharmacy, Second Military Medical University, Shanghai Key Laboratory for Pharmaceutical Metabolites Research, 325 Guohe Road, Shanghai 200433, PR China
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Chai YF, Meers J, Christensen NH. Evaluation of serological, histological and immunocytochemical methods for the detection of infectious bursal disease virus infection in broiler flocks in New Zealand. N Z Vet J 2005; 47:175-9. [PMID: 16032098 DOI: 10.1080/00480169.1999.36138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AIMS TO study and compare three diagnostic methods for the detection of infectious bursal disease virus (IBDV) infection. METHODS Samples of sera and bursae were collected from two flocks from each of two broiler farms (Farms A and B) in which IBD had occurred or was suspected to have occurred. Sera were tested in ELISA and agar gel precipitation tests for the presence of IBD antibodies. Bursae were examined histologically for evidence of IBD lesions. An immunocytochemical test was developed to detect IBDV antigens in sections of bursa. RESULTS Bursae from serologically negative, 45-day-old birds from Farm A, Flock 1 and from serologically positive 49-day-old birds from Farm B, Flock 1 had histological and immunocytochemical evidence of IBDV infection. Birds from Farm A, Flock 2, sampled 12 months after the sampling of Flock 1, and specific-pathogen-free birds, showed no evidence of IBDV infection by any of the three diagnostic methods. Birds from Farm B, Flock 2, sampled on four occasions, were positive for IBD at 20 days of age by histology and immunocytochemistry, but did not seroconvert until 42 days of age. CONCLUSIONS Serological testing is not a reliable method for the detection of IBDV infection in New Zealand broiler flocks because antibodies may not have developed to detectable levels by the time of slaughter. Histological examination of bursae allowed the demonstration of IBD-like lesions, but these need to be differentiated from those caused by other agents. The immunocytochemistry test was able to detect early IBDV infection. It provided a rapid, definitive diagnosis and may be useful in control programmes. The results from Farm A demonstrate that strict biosecurity measures can be successful in the eradication of IBDV.
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Affiliation(s)
- Y F Chai
- Institute of Veterinary Animal and Biomedical Sciences, Massey University, Private Bag 11222, Palmerston North, New Zealand
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Wu XF, Chai YF, Liu LL, Lou ZY, Li JW, Zhang GQ, Wang B. [Separation and determination of pseudoephedrine in bufferin cold tablet by capillary electrophoresis with hydropropyl-beta-cyclodextrin as chiral selective reagent]. Se Pu 2001; 19:552-4. [PMID: 12545473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
A method for the separation and analysis of the chiral pseudoephedrine enantiomers using capillary electrophoresis was established. The buffer solution for separation was 25 mmol/L Tris-phosphate, including 38 mmol/L hydropropyl-beta-cyclodextrin with pH value of 2.65. (1S, 2S)(+) Pseudoephedrine in Bufferin Cold tablet was determined. The method has good precision, recovery and linear relationship.
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Affiliation(s)
- X F Wu
- College of Pharmaceutical Science, Second Military Medical University, Shanghai 200433, China
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Abstract
Over the past several years, neurotrophic factors have made considerable progress from the laboratory into the clinic. Evidence from preclinical and clinical studies indicates that it may be possible to use neurotrophic factors to prevent, slow the progression of, or even reverse the effects of a number of neurodegenerative diseases and other types of insults in both the central and peripheral nervous system. Their potential importance in the development of therapeutic agents against neurodegenerative disorders and nerve injury has led to a flurry of activity towards understanding their structure, function and signalling mechanisms. Approaches to develop pharmacological agents that target neurotrophic factors, their receptors or neurotrophic factors signalling pathways have been attempted. This review focuses on some of the major themes and lines of mechanistic and therapeutic advances in this fast-moving field of neuroscience.
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Affiliation(s)
- Z Y Chen
- Department of Neurobiology, the Second Military Medical University, 800 Xiangyin Road, Shanghai 200433, China.
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Abstract
Isolates of infectious bursal disease virus (IBDV) were obtained from domestic poultry in New Zealand in 1997 and 1998. An in-vivo pathogenicity study carried out in specific pathogen free (SPF) chickens demonstrated the low virulence of one of the virus isolates. The nucleotide sequences of the hypervariable region of the VP2 gene of two isolates were determined and compared with published sequences of strains from other countries. The deduced amino acid sequence of the two New Zealand IBDV isolates showed 100% identity with each other, suggesting that little genetic drift had occurred. Phylogenetic analysis showed that the New Zealand isolates were more closely related to two attenuated IBDV strains (Cu1 and PBG98) than to classical (STC and 52/70), very virulent (DV86), variant (variant E) or Australian (002-73) strains. The results support the hypothesis that an attenuated strain of the virus was inadvertently introduced into the NZ poultry population in 1993.
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Affiliation(s)
- Y F Chai
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand.
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Chen ZY, Chai YF, Cao L, Lu CL, He C. Glial cell line-derived neurotrophic factor enhances axonal regeneration following sciatic nerve transection in adult rats. Brain Res 2001; 902:272-6. [PMID: 11384621 DOI: 10.1016/s0006-8993(01)02395-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Adult rat sciatic nerve was transected and sutured with an entubulation technique. The nerve interstump gap was filled with either collagen gel (COL) or collagen gel mixed with glial cell line-derived neurotrophic factor (COL/GDNF). Four weeks after nerve transection, horseradish peroxidase (HRP)-labelled spinal cord motoneurons and the myelinated distal stump axons were quantified. Compared with the COL group, the percentages of labeled spinal somas and axon number were significantly increased after topically applied glial cell line-derived neurotrophic factor (GDNF). The functional recovery of the transected nerve was improved in COL/GDNF group. GAP-43 expression was also significantly higher in COL/GDNF group 1 and 2 weeks after sciatic nerve axotomy vs. COL group. These data provide strong evidence that GDNF could promote axonal regeneration in adult rats, suggesting the potential use of GDNF in therapeutic approaches to peripheral nerve injury and neuropathies.
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Affiliation(s)
- Z Y Chen
- Department of Neurobiology, the Second Military Medical University, 800 Xiangyin Road, 200433, Shanghai, China.
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Abstract
A non-aqueous capillary electrophoretic method was established for the determination of berberine in Rhizoma coptidis and its preparations. The effects of organic solvent and the concentrations of sodium acetate were studied, which showed that berberine in extracts of traditional Chinese medicine can be separated successfully in a buffer solution of 75 mmol/L of sodium acetate in methanol containing 1 mol/L of acetic acid. The simple and rapid method was linear in the range 25-200 microgram/mL of berberine and had a good reproducibility, with the relative standard deviation below 2%. Non-aqueous capillary electrophoresis is a satisfactory system for the analysis of alkaloids in traditional Chinese medicine.
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Affiliation(s)
- S G Ji
- Department of Pharmacy, Hospital 401, Qingdao 266071, People's Republic of China
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Abstract
A capillary zone electrophoresis method was set up for the separation and determination of glycyrrhizin in Chinese medicinal preparations. Concentrations of Na(2)B(4)O(7) were optimized, which showed that glycyrrhizin in the sample could be separated from interference in the running buffer of 30 mmol/L Na(2)B(4)O(7). Using declofenac as internal standard, the simple method was linear in the range 25-300 microg/mL of glycyrrhizin, and good reproducibility was obtained. The extracts of Radix glycyrrhizae and its preparations could be injected directly for analysis without any pretreatment.
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Affiliation(s)
- G Q Zhang
- Department of Pharmacy, Eastern Institute and Hospital of Hepatobiliary Surgery, 225 Changhai Road, Shanghai 200438, People's Republic of China
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Abstract
Ferulic acid in extracts of raw herbs was separated by capillary zone electrophoresis in the buffer solution of 10 mmol/L Na(2)B(4)O(7). The simple and rapid method was linear, ranging from 5 to 100 microg/mL, and had a good reproducibility with the RSD below 2%. The contents of ferulic acid in Angelica sinensis and Chuanxiong could be easily determined within 15 min with no pretreatment and no interference.
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Affiliation(s)
- S G Ji
- School of Pharmacy, Second Military Medical University, Shanghai, 200433, People's Republic of China
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Abstract
Tetrahydropalmatine in Rhizoma corydalis and its preparations were separated and determined with no pretreatment in the buffer solution of 50 mmol/L of sodium acetate in methanol containing 2 mol/L acetic acid.
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Affiliation(s)
- S G Ji
- Department of Pharmacy, Hospital 401, Qingdao, PR China.
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Ji SG, Chai YF, Wu YT, Yin XP, Xiang ZB, Liang DS, Xu ZM, Li X. Separation and determination of anthraquinone derivatives in rhubarb and its preparations by micellar electrokinetic capillary chromatography. Biomed Chromatogr 1998; 12:335-7. [PMID: 9861493 DOI: 10.1002/(sici)1099-0801(199811/12)12:6<335::aid-bmc758>3.0.co;2-f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A micellar electrokinetic capillary chromatographic method was set up for the quality control of rhubarb and its preparations. Anthraquinone derivatives were separated successfully within 10 min in the buffer solution of 50 mmol/L H3BO3-NaOH (pH 11) containing 25 mmol/L sodium deoxycholate. The established method, with a recovery of extraction of over 90%, has good linear relationship and reproducibility. The contents of anthraquinone derivatives in rhubarb and a tablet of Niu-huang-jie-du differed significantly, showing that the quality control of rhubarb and its preparations is necessary.
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Affiliation(s)
- S G Ji
- School of Pharmacy, Second Military Medical University, Shanghai, P. R. China
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Abstract
A micellar electrokinetic capillary chromatographic method was set up for the separation of five anthraquinone derivatives in rhubarb. Optimization of pH and sodium deoxycholate(SDC) concentrations was studied, which showed that 50 mM H3BO3-NaOH(pH 11) containing 25 mM SDC could separate the five ingredients completely within 10 min with good reproducibility of elution time.
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Affiliation(s)
- Y F Chai
- School of Pharmacy, Second Military Medical University, Shanghai, Peoples Republic of China
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