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Li Y, Xing T, Xu R, Liu Y, Zhong X, Liu Y, Tan R. Single-pool model urea clearance index is associated with sarcopenia and nutritional status in patients undergoing maintenance hemodialysis: a cross-sectional study. BMC Nephrol 2024; 25:80. [PMID: 38443824 PMCID: PMC10916151 DOI: 10.1186/s12882-024-03510-4] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/18/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND The single-pool model urea clearance index (single-pool Kt/Vurea; spKt/V) is the most commonly used method for dialysis adequacy assessment. However, only a few studies have examined the relationship between spKt/V values and parameters related to sarcopenia and nutritional status. This study aimed to evaluate whether the spKt/V is an indicator of sarcopenia and nutritional status in patients undergoing maintenance hemodialysis (MHD). METHODS A total of 142 patients were included in this single-center, cross-sectional study. Venous blood samples were collected shortly before the hemodialysis session. The adequacy of dialysis in patients receiving MHD was assessed using spKt/V. Sarcopenia was identified according to the Asian Working Group for Sarcopenia (2019) definition. Receiver operating characteristic curve and area under the curve were used to evaluate the predictive value of spKt/V in sarcopenia. Univariate and multivariate binary logistic regression analyses were used to determine the association between spKt/V and sarcopenia and nutritional status. RESULTS The mean spKt/V level was 1.3 ± 0.2, the prevalence of sarcopenia was 15.5% in patients on MHD. The best cutoff value of spKt/V in sarcopenia was 1.45 for both sexes, 1.33 and 1.45 for men and women, respectively (P < 0.05). The multivariate binary logistic regression shown that the spKt/V was independently positively associated with sarcopenia (OR = 122.88, 95% CI = 0.64-0.87, P = 0.002). Grouping spKt/V by the best cutoff value, when spKt/V ≥ 1.45, the OR of sarcopenia was 11.75 (95% CI = 3.16-43.67, P < 0.001). Subgroup analyses showed that when spKt/V ≥ 1.33 in men and spKt/V ≥ 1.45 in woman, the OR of sarcopenia was 9.73 (95% CI = 2.25-42.11, P = 0.002) and 14.52 (95% CI = 1.06-199.67, P = 0.045), respectively. CONCLUSIONS The present study showed that spKt/V was an important influencing factor of sarcopenia and malnutrition in Asian patients on MHD.
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Affiliation(s)
- Yan Li
- Department of Nephrology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Tingting Xing
- Department of Nephrology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Rong Xu
- Department of Nephrology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Yan Liu
- Department of Nephrology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
- Department of Clinical Nutrition, Institute of Disease-Oriented Nutritional Research, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Xiaoshi Zhong
- Department of Nephrology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Yun Liu
- Department of Nephrology, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
- Department of Clinical Nutrition, Institute of Disease-Oriented Nutritional Research, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Rongshao Tan
- Department of Clinical Nutrition, Institute of Disease-Oriented Nutritional Research, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China.
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Li H, Yu S, Li P, Zhang J, Maitiyaer M, Huang AM, Deng Q, Yang R, Liang J, Huang W, Liu Z. MICROVASCULATURE ALTERATIONS OF PERIPAPILLARY RETINA AND MACULA IN SYSTEMIC LUPUS ERYTHEMATOSUS PATIENTS WITHOUT OCULAR INVOLVEMENT BY OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY. Retina 2024; 44:515-526. [PMID: 37973040 DOI: 10.1097/iae.0000000000003989] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 10/19/2023] [Indexed: 11/19/2023]
Abstract
PURPOSE To evaluate microvasculature alterations of the peripapillary retina and macula and to assess whether the changes can detect preclinical retinopathy in systemic lupus erythematosus patients. METHODS Cross-sectional study of 32 systemic lupus erythematosus patients without retinopathy and 22 normal controls. Optical coherence tomography angiography was used to measure the microvasculature of the peripapillary retina and macula. Vessel densities (VD, %) and fractal dimensions of superficial capillary plexus (SCP) and deep capillary plexus were calculated. RESULTS Compared with controls, macular vessel densities of the whole image SCP (macular vessel density of SCP-wi) and macular vessel density of inferior SCP (macular vessel density of SCP-i) were significantly reduced in systemic lupus erythematosus patients ( P < 0.05). The peripapillary vessel densities (peripapillary vessel density [pVD]) of a 2.5-mm circle of SCP (pVD of SCP Φ2.5 ), pVD of SCP Φ3.5 , and pVD of inferior region of the inner circle of SCP (pVD of SCP-ii) were significantly reduced in patients treated with hydroxychloroquine >5 years. Macular vessel density of SCP-wi declined with age (β = -0.12; P < 0.01) and pVD of SCP-ii declined with hydroxychloroquine cumulative dose (β = -0.01; P < 0.01). Macular vessel density of SCP-i had the best discrimination power of 0.77 ( P < 0.01). CONCLUSION Systemic lupus erythematosus patients without ocular involvement had microvasculature alterations that were particularly evident in the SCP. Peripapillary retina microvasculature may be reduced in patients with longer hydroxychloroquine treatment.
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Affiliation(s)
- Huangdong Li
- Ophthalmic Center, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - ShuiLian Yu
- Department of Rheumatology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Peiyi Li
- Department of Rheumatology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jingyu Zhang
- Ophthalmic Center, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Maierhaba Maitiyaer
- Department of Rheumatology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Amy Michelle Huang
- Department of Ophthalmology, University of Colorado, Aurora, Colorado; and
| | - Qian Deng
- Ophthalmic Center, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Bijie Maternal and Child Health Hospital, Bijie, Guizhou
| | - Ruiming Yang
- Ophthalmic Center, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jiamian Liang
- Ophthalmic Center, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenhui Huang
- Department of Rheumatology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhiping Liu
- Ophthalmic Center, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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Li ZH, Zhong WF, Zhang XR, Chung VC, Song WQ, Chen Q, Wang XM, Huang QM, Shen D, Zhang PD, Liu D, Zhang YJ, Chen PL, Cheng X, Yang HL, Cai MC, Gao X, Kraus VB, Mao C. Association of physical activity and air pollution exposure with the risk of type 2 diabetes: a large population-based prospective cohort study. Environ Health 2022; 21:106. [PMID: 36336676 PMCID: PMC9639290 DOI: 10.1186/s12940-022-00922-3] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND The interplay between physical activity (PA) and air pollution in relation to type 2 diabetes (T2D) remains largely unknown. Based on a large population-based cohort study, this study aimed to examine whether the benefits of PA with respect to the risk of T2D are moderated by exposure to air pollution. METHODS UK Biobank participants (n = 359,153) without diabetes at baseline were included. Information on PA was obtained using the International Physical Activity Questionnaire short form. Exposure to air pollution, including PM2.5, PMcoarse (PM2.5-10), PM10, and NO2, was estimated from land use regression models. Cox regression models were used to estimate the hazard ratios (HRs) and 95% confidence intervals (95% CIs). RESULTS During a median of 8.9 years of follow-up, 13,706 T2D events were recorded. Compared with a low PA level, the HRs for the risk of T2D among individuals with moderate and high PA were 0.82 (95% CI, 0.79-0.86) and 0.73 (95% CI, 0.70-0.77), respectively. Compared with low levels of air pollution, the HRs for risk of T2D for high levels of air pollution (PM2.5, PMcoarse, PM10, and NO2) were 1.19 (1.14-1.24), 1.06 (1.02-1.11), 1.13 (1.08-1.18), and 1.19 (1.14-1.24), respectively. There was no effect modification of the associations between PA and T2D by air pollution (all P-interactions > 0.05). The inverse associations between PA and T2D in each air pollution stratum were generally consistent (all P for trend < 0.05). CONCLUSION A higher PA and lower air pollution level were independently associated with a lower risk of T2D. The beneficial effects of PA on T2D generally remained stable among participants exposed to different levels of air pollution. Further studies are needed to replicate our findings in moderately and severely polluted areas.
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Affiliation(s)
- Zhi-Hao Li
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
- Microbiome Medicine Center, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Wen-Fang Zhong
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Xi-Ru Zhang
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Vincent Ch Chung
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Wei-Qi Song
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Qing Chen
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Xiao-Meng Wang
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Qing-Mei Huang
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Dong Shen
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Pei-Dong Zhang
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Dan Liu
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Yu-Jie Zhang
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Pei-Liang Chen
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Xin Cheng
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Hai-Lian Yang
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Miao-Chun Cai
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Xiang Gao
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, University Park, USA
| | - Virginia Byers Kraus
- Duke Molecular Physiology Institute, Division of Rheumatology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Chen Mao
- Department of Epidemiology, School of Public Health, Southern Medical University, 510515, Guangzhou, Guangdong, China.
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Tang W, Li ZW, Miao GQ, Li ZP, Gui T, Wu CJ, Li ZY, Yang J, Zhao XD, Liu N, Zha ZG, Yao LT, Zhang HT. Single-Cell RNA Sequencing Reveals Transcriptional Changes in the Cartilage of Subchondral Insufficiency Fracture of the Knee. J Inflamm Res 2022; 15:6105-6112. [PMID: 36386577 PMCID: PMC9645121 DOI: 10.2147/jir.s385648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Purpose Subchondral insufficiency fracture of the knee (SIFK) is a common cause of knee joint pain that mainly afflicts the elderly. Until now, how a sudden insufficiency fracture of subchondral bone affects the transcriptomic profiles of cartilage in SIFK and OA patients are largely unknown. Methods Single-cell RNA sequencing (scRNA-seq) was used to identify various cell subsets and evaluate transcriptomic differences in cartilage of SIFK and OA patients. In addition, the above findings were confirmed by histological evaluation and immunohistochemical (IHC) staining. Results We found that the transcriptomic profiles of cartilage in the SIFK patient was completely different from those of normal and OA patients. Accordingly, several novel cell clusters with activation of hypoxia and endochondral ossification signaling were identified in the SIFK cartilage. Chondrocyte trajectories analysis and IHC staining revealed that transcription factors including TCF4 were found to be highly up-regulated during the occurrence of SIFK, which might drive the reactive formation of cartilage and fibrous tissue and the activation of endochondral ossification. Conclusion This is the first report to elucidate the transcriptomic alterations and distinct cell type subpopulations in the cartilage of SIFK and OA by the use of scRNA-seq, which provides a new insight in the understanding of the initiation and progression of SIFK.
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Affiliation(s)
- Wang Tang
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Zhen-Wei Li
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Gui-Qiang Miao
- Department of Orthopedics, Foshan Fosun Chancheng Hospital, Foshan, 528010, People’s Republic of China
| | - Zhi-Peng Li
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Tao Gui
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Chong-Jie Wu
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Zhen-Yan Li
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Jie Yang
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Xiao-Dong Zhao
- Department of Orthopedics, Foshan Fosun Chancheng Hospital, Foshan, 528010, People’s Republic of China
| | - Ning Liu
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Zhen-Gang Zha
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Lu-Tian Yao
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, 110001, People’s Republic of China
- Correspondence: Lu-Tian Yao; Huan-Tian Zhang, Email ;
| | - Huan-Tian Zhang
- Department of Bone and Joint Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
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Ou J, Zhou Y, Li C, Chen Z, Li H, Fang M, Zhu C, Huo C, Yung KKL, Li J, Luo C, Mo Z. Sinomenine Protects Against Morphine Dependence through the NMDAR1/CAMKII/CREB Pathway: A Possible Role of Astrocyte-Derived Exosomes. Molecules 2018; 23:E2370. [PMID: 30227624 PMCID: PMC6225372 DOI: 10.3390/molecules23092370] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/07/2018] [Accepted: 09/08/2018] [Indexed: 11/16/2022] Open
Abstract
Sinomenine is a nonaddictive alkaloid used to prevent morphine dependence, even thoughits mechanism isnot fully understood. Astrocytes aggravate the pathological process in their neighboring cellsthrough exosomes in central nervous system diseases. However, the effect of sinomenine on astrocyte-derived exosomes for the amelioration of morphine dependence has not been reported yet. In this study, we found that sinomenine prevented the morphine-induced conditionedplace preference in mice. Sinomenine reduced the levels of cAMP and intracellular Ca2+ in morphine-treated SH-SY5Y cells. Moreover, sinomenine inhibited the expressions of p-NMDAR1/NMDAR1, p-CAMKII/CAMKII, and p-CREB/CREB in the hippocampusof morphine-dependent mice and SH-SY5Y cells. Furthermore, we found that sinomenine inhibitedthe morphine-induced activation of astrocytesin vivo and in vitro. Afterwards, exosomes were isolated from cultured primary astrocytes treated with phosphate buffer saline (PBS, ctl-exo), morphine (mor-exo), or morphine and sinomenine (Sino-exo). Subsequently, morphine-treated SH-SY5Y cells were treated with ctl-exo, mor-exo, and Sino-exo. Results showed that Sino-exo reduced the level of cAMP, intracellular Ca2+, and the expression of p-CAMKII/CAMKII and p-CREB/CREB in morphine-treated SH-SY5Y cells. In conclusion, we demonstrated that sinomenine exhibited protective effects against morphine dependencein vivo and in vitro through theNMDAR1/CAMKII/CREB pathway. Sinomenine-induced alterationof the function of astrocyte-derived exosomes may contribute to the antidependence effects of sinomenine in morphine dependence.
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Affiliation(s)
- Jinying Ou
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Yuting Zhou
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Chan Li
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Zhijie Chen
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Hancheng Li
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Miao Fang
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Chen Zhu
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Chuying Huo
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Ken Kin-Lam Yung
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Jing Li
- Central Laboratory, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Chaohua Luo
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
| | - Zhixian Mo
- School of Traditional Chinese Medicine, Southern Medical University, 1023-1063 Shatai South Road, Guangzhou 510515, China.
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