1
|
Yang LF, Mu JX, Zhang J, Zang S, Zhang L, Qi JH, Ni CP, Liu Y. Interventions to promote the implementation of pressure injury prevention measures in nursing homes: A scoping review. J Clin Nurs 2024; 33:1709-1723. [PMID: 38156732 DOI: 10.1111/jocn.16983] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/18/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
AIMS To identify studies and the content of the interventions that have facilitated the implementation of pressure injury (PI) prevention measures in nursing home settings. DESIGN AND METHOD A scoping review methodology was employed. The author has carried out the following steps successively: Identified this scoping review's questions, retrieved potentially relevant studies, selected relevant studies, charted the data, summarised the results, and consulted with stakeholders from nursing homes in China. DATA SOURCES Six electronic databases and three resources of grey literature-PubMed, CINAHL, Web of Science Core Collection, Embase, Cochrane Central Register of Controlled Trials, Psych INFO, Open Grey, MedNar, ProQuest Dissertations, and Theses Full Texts were searched from January 2002 through May 2022. RESULTS Forty articles were included, among which the primary interventions were quality improvement, training and education, evidence-based practice, device-assisted PI prophylaxis, nursing protocols, and clinical decision support systems. Twenty-three outcome indicators were summarised in 40 articles, which included 10 outcome indicators, seven process indicators, and six structural indicators. Furthermore, only five articles reported barriers in the process of implementing interventions. CONCLUSION The common interventions to promote the implementation of PI prevention measures in nursing homes are quality improvement, training, and education. Relatively limited research has been conducted on evidence-based practice, clinical decision support systems, device-assisted PI prophylaxis, and nursing protocols. In addition, there is a paucity of studies examining the impediments to implementing these measures and devising targeted solutions. Therefore, it is recommended that future studies include analysis and reporting of barriers and facilitators as part of the article to improve the sustainability of the intervention. IMPACT This article reminds nursing home managers that they should realise the importance of implementation strategies between the best evidence of PI prevention and clinical practice. Also, this review provides the types, contents, and outcome indicators of these strategies for managers of nursing homes to consider what types of interventions to implement in their organisations. TRIAL AND PROTOCOL REGISTRATION The protocol of this scoping review was published as an open-access article in June 2022 (Yang et al., 2022).
Collapse
Affiliation(s)
- L F Yang
- Department of Nursing, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing, China
| | - J X Mu
- Department of Nursing, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - J Zhang
- The Operating Room, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - S Zang
- Department of Nursing, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - L Zhang
- Public Health Clinical Center of Chengdu, Chengdu, Sichuan Province, China
| | - J H Qi
- Department of Pharmacy and Health Management, Hebei Chemical & Pharmaceutical College, Shijiazhuang, Hebei Province, China
| | - C P Ni
- School of Nursing, China Medical University, Shenyang, Liaoning Province, China
| | - Y Liu
- School of Nursing, China Medical University, Shenyang, Liaoning Province, China
| |
Collapse
|
2
|
Zang S, Yang X, Ye J, Mo X, Zhou G, Fang Y. Quantitative phosphoproteomics explain cryopreservation-induced reductions in ram sperm motility. J Proteomics 2024; 298:105153. [PMID: 38438079 DOI: 10.1016/j.jprot.2024.105153] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/27/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
Sperm cryopreservation decreases motility, probably due to changes in protein phosphorylation. Our objective was to use quantitative phosphoproteomics for systematic comparative analyses of fresh versus frozen-thawed sperm to identify factors causing cryo-injury. Ejaculates were collected (artificial vagina) from six Dorper rams, pooled, extended, and frozen over liquid nitrogen. Overall, 915, 3382, and 6875 phosphorylated proteins, phosphorylated peptides, and phosphorylation sites, respectively, were identified. At least two modified sites were present in 57.94% of the 6875 phosphosites identified, of which AKAP4 protein contained up to 331 modified sites. There were 732 phosphorylated peptides significantly up-regulated and 909 significantly down-regulated in frozen-thawed versus fresh sperm. Moreover, the conserved motif [RxxS] was significantly down-regulated in frozen-thawed sperm. Phosphorylation of sperm-specific proteins, e.g., AKAP3/4, CABYR, FSIP2, GSK3A/B, GPI, and ODF1/2 make them potential biomarkers to assess the quality of frozen-thawed ram sperm. Furthermore, these differentially phosphorylated proteins and modification sites were implicated in cryopreservation-induced changes in sperm energy production, fiber sheath composition, and various biological processes. We concluded that abnormal protein phosphorylation modifications are key regulators of reduced sperm motility. These novel findings implicated specific protein phosphorylation modifications in sperm cryo-injury. SIGNIFICANCE: This study used phosphorylated TMT quantitative proteomics to explore regulation of epigenetic modifications in frozen-thawed ram sperm. This experiment demonstrated that ram sperm freezing affects phosphorylation site modifications of proteins, especially those related to functions such as sperm motility and energy production. Furthermore, it is important to link functions of phosphorylated proteins with changes in sperm quality after freezing and thawing, and to clarify intrinsic reasons for sperm quality changes, which is of great importance for elucidating mechanisms of sperm freezing damage. Based on these protein markers and combined with cryoprotectant design theory, it provides a theoretical basis and data reference to study sperm cryoprotectants.
Collapse
Affiliation(s)
- Shengqin Zang
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, PR China
| | - Xiaorui Yang
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China
| | - Jiangfeng Ye
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, PR China
| | - Xianhong Mo
- College of Chemistry and Life Science, Chifeng University, Chifeng 024000, PR China
| | - Guangbin Zhou
- Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology (Institute of Animal Genetics and Breeding), Sichuan Agricultural University, Chengdu 611130, PR China
| | - Yi Fang
- Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, College of Animal Science and Technology, Jilin Agricultural University, Jilin, Changchun 130118, China.
| |
Collapse
|
3
|
Xie Y, Li C, Zhang L, Zang S, Yu F, Wang S, Wang F. [ 68Ga-PSMA-I&T PET/CT for assessment of tumor burden in primary lesions of treatmentnaïve prostate cancer]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1143-1148. [PMID: 36073212 DOI: 10.12122/j.issn.1673-4254.2022.08.05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the value of 68Ga-labeled prostate specific membrane antigen (PSMA) PET/CT for assessing tumor load in primary lesions for risk stratification and predicting metastasis of newly diagnosed prostate cancer (PCa). METHODS We retrospectively analyzed the data of 36 patients (mean age 71.3 ± 8.6 years, range 56 to 89 years) with newly diagnosed PCa undergoing 68Ga-PSMA-I&T PET/CT from June 2018 to July 2019. SUVmax and SUVmean of the primary lesions were measured, and the primary PSMA tumor volume (PSMA-TV) and total lesion PSMA (TL-PSMA) were automatically measured and calculated in all the patients. The correlations of primary SUVmax, PSMA-TV, and TL-PSMA with PSA and Gleason score (GS) were analyzed, and SUVmax, PSMA-TV and TL-PSMA of the primary lesions were compared among different PCa subgroups. RESULTS SUVmax, PSMA-TV and TL-PSMA of the primary lesions were all correlated with PSA and GS (P < 0.05). PCa subgroup analysis showed that SUVmax, PSMA-TV and TL-PSMA were all significantly higher in patients with PSA >20 ng/mL than in those with PSA ≤20 ng/mL (P < 0.001), and were higher in patients with a GS ≥8 than in those with a GS ≤7 (P < 0.001). PSMA-TV and TL-PSMA were significantly higher in patients with tumor metastasis than in those without metastasis (P < 0.001), while SUVmax did not differ significantly with tumor metastasis. SUVmax (P=0.002), PSMA-TV (P < 0.001), and TL-PSMA (P < 0.001) were all significantly higher in high-risk group than in low-to moderate-risk group. CONCLUSION PSMA-TV and TL-PSMA of 68Ga-PSMA-I&T PET/CT have potential value in predicting risk stratification and metastasis of newly diagnosed PCa.
Collapse
Affiliation(s)
- Y Xie
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China.,Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China.,Department of Nuclear Medicine, Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - C Li
- Department of Nuclear Medicine, Zhongda Hospital, Southeast University, Nanjing 210009, China
| | - L Zhang
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - S Zang
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - F Yu
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - S Wang
- Department of Laboratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - F Wang
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| |
Collapse
|
4
|
Qin J, Guo S, Yang J, Qazi IH, Pan B, Lv T, Zang S, Fang Y, Zhou G. Melatonin Promotes in vitro Development of Vitrified-Warmed Mouse GV Oocytes, Potentially by Modulating Phosphorylation of Drp1. Front Vet Sci 2021; 8:752001. [PMID: 34631868 PMCID: PMC8497800 DOI: 10.3389/fvets.2021.752001] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 08/30/2021] [Indexed: 12/03/2022] Open
Abstract
Previous studies have shown that melatonin can mitigate cryopreservation-induced mitochondrial dysfunction in oocytes; however, the underlying molecular mechanism remains unclear. The objective of the present study was to investigate whether melatonin can improve the mitochondrial function during in vitro maturation of vitrified-warmed mouse germinal vesicle (GV) oocytes by modulating phosphorylation of dynamin related protein 1 (Drp1). Vitrification/warming procedures resulted in the following: (1) After cryopreservation of mouse GV oocytes, the phosphorylation level of Drp1 at Ser616 (p-Drp1 Ser616) in metaphase II (MII) oocytes was increased (P < 0.05). Furthermore, the rates of in vitro maturation, cleavage and blastocyst formation after parthenogenetic activation were decreased (P < 0.05). (2) In MII oocytes, the expression levels of translocase of the mitochondrial outer membrane 20 (TOMM20), mitochondrial membrane potential (MMP), adenosine triphosphate (ATP) content, and mRNA levels of mitochondrial biogenesis-related genes (Sirt1, Pgc-1α, Tfam) were all decreased (P < 0.05), and (3) Reactive oxygen species (ROS) level, early apoptosis level, Cytochrome C release and mRNA levels of pro-apoptotic related genes (Bax, Caspase9, Caspase3) in MII oocytes were all increased (P < 0.05). The results of this study further revealed that negative impacts of GV oocyte cryopreservation were mitigated by supplementation of warming and in vitro maturation media with 10−7mol /L melatonin or 2 x 10−5mol/L Mdivi-1 (Drp1 inhibitor). Therefore, we concluded that 10−7mol/L melatonin improved mitochondrial function, reduced oxidative stress and inhibited apoptosis by regulating phosphorylation of Drp1, thereby enhancing in vitro development of vitrified-warmed mouse GV oocytes.
Collapse
Affiliation(s)
- Jianpeng Qin
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Shichao Guo
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jinyu Yang
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Izhar Hyder Qazi
- Department of Veterinary Anatomy and Histology, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, Pakistan
| | - Bo Pan
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Tianyi Lv
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Shengqin Zang
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yi Fang
- Department of Grassland Resources and Animal Husbandry, Jilin Provincial Key Laboratory of Grassland Farming, Northeast Institute of Geography and Agoecology, Chinese Academy of Sciences, Changchun, China
| | - Guangbin Zhou
- Department of Animal Science, Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| |
Collapse
|
5
|
Yang J, Guo S, Pan B, Qazi IH, Qin J, Zang S, Han H, Meng Q, Zhou G. Melatonin promotes in vitro maturation of vitrified-warmed mouse GV oocytes potentially by modulating MAD2 protein expression of SAC component through MTRs. Cryobiology 2021; 102:82-91. [PMID: 34297995 DOI: 10.1016/j.cryobiol.2021.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/07/2021] [Accepted: 07/17/2021] [Indexed: 12/13/2022]
Abstract
Previous studies have shown that melatonin (MT) can ameliorate vitrification-inflicted damage in mouse germinal vesicle (GV) oocytes, however, the key mechanistic basis of this improvement still remains poorly understood. This study was conducted to investigate whether MT can improve in vitro developmental potential of vitrified-warmed GV oocytes through its receptors. The fresh oocytes were randomly divided into four groups: untreated (control group, F), vitrified by open-pulled straw method (vitrification group, V), vitrification group with 100 nmol/L MT supplementation (vitrification + MT group, VM), and with 100 nmol/L MT plus 100 nmol/L luzindole administration (vitrification + MT + luzindole group, VML) or with 50 nmol/L ramelteon addition (vitrification + ramelteon group; VR). After warming, oocytes were cultured in vitro, and MT receptors (MTRs), MAD2 (mitotic arrest deficient 2), Securin and CyclinB1 protein levels and spindle morphology were evaluated. The ratio of oocytes developed to the metaphase I (MI) and metaphase II (MII) stages was also assessed. The results showed that after vitrification-warming, the in vitro maturation rate of GV oocytes was significantly lower compared to the control (F) group. Vitrification also significantly impaired the spindle morphology, decreased the protein level of MTRs and Securin, and decreased MAD2 levels in MI oocytes. However, when MT or ramelteon (MTRs agonist) were added (group wise) to warming and maturation media, the maturation rate of GV oocytes was significantly increased, the normal proportion of the spindle morphology increased, and the expression level of MAD2 increased in their resulting MI oocytes compared to the vitrification group. However, following addition of both MT and ramelteon, the maturation rate of GV oocyte showed no significant difference between VML and vitrification groups. The spindle morphology and MAD2 levels in MI oocytes were comparable to the vitrification group but differed significantly from the VM group. Taken together, finding of the present study shows that MT (100 nmol/L) can ameliorate the in vitro maturation of vitrified-warmed mouse GV oocytes, potentially by improving the spindle morphology, modulating MAD2 protein level and promoting the development of MI stage oocytes through MTRs.
Collapse
Affiliation(s)
- Jinyu Yang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Shichao Guo
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Bo Pan
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Izhar Hyder Qazi
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China; Department of Veterinary Anatomy and Histology, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, 67210, Sindh, Pakistan.
| | - Jianpeng Qin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Shengqin Zang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Hongbing Han
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
| | - Qingyong Meng
- State Key Laboratory of AgroBiotechnology, China Agricultural University, Beijing, 100193, China.
| | - Guangbin Zhou
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
| |
Collapse
|
6
|
Pan B, Qazi IH, Guo S, Yang J, Qin J, Lv T, Zang S, Zhang Y, Zeng C, Meng Q, Han H, Zhou G. Melatonin improves the first cleavage of parthenogenetic embryos from vitrified-warmed mouse oocytes potentially by promoting cell cycle progression. J Anim Sci Biotechnol 2021; 12:84. [PMID: 34266479 PMCID: PMC8283938 DOI: 10.1186/s40104-021-00605-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 05/13/2021] [Indexed: 11/22/2022] Open
Abstract
Background This study investigated the effect of melatonin (MT) on cell cycle (G1/S/G2/M) of parthenogenetic zygotes developed from vitrified-warmed mouse metaphase II (MII) oocytes and elucidated the potential mechanism of MT action in the first cleavage of embryos. Results After vitrification and warming, oocytes were parthenogenetically activated (PA) and in vitro cultured (IVC). Then the spindle morphology and chromosome segregation in oocytes, the maternal mRNA levels of genes including Miss, Doc1r, Setd2 and Ythdf2 in activated oocytes, pronuclear formation, the S phase duration in zygotes, mitochondrial function at G1 phase, reactive oxygen species (ROS) level at S phase, DNA damage at G2 phase, early apoptosis in 2-cell embryos, cleavage and blastocyst formation rates were evaluated. The results indicated that the vitrification/warming procedures led to following perturbations 1) spindle abnormalities and chromosome misalignment, alteration of maternal mRNAs and delay in pronucleus formation, 2) decreased mitochondrial membrane potential (MMP) and lower adenosine triphosphate (ATP) levels, increased ROS production and DNA damage, G1/S and S/G2 phase transition delay, and delayed first cleavage, and 3) increased early apoptosis and lower levels of cleavage and blastocyst formation. Our results further revealed that such negative impacts of oocyte cryopreservation could be alleviated by supplementation of warming, recovery, PA and IVC media with 10− 9 mol/L MT before the embryos moved into the 2-cell stage of development. Conclusions MT might promote cell cycle progression via regulation of MMP, ATP, ROS and maternal mRNA levels, potentially increasing the first cleavage of parthenogenetic zygotes developed from vitrified–warmed mouse oocytes and their subsequent development.
Collapse
Affiliation(s)
- Bo Pan
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Izhar Hyder Qazi
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.,Department of Veterinary Anatomy and Histology, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, Sindh, 67210, Pakistan
| | - Shichao Guo
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jingyu Yang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jianpeng Qin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Tianyi Lv
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shengqin Zang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Changjun Zeng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qingyong Meng
- State Key Laboratory of AgroBiotechnology, China Agricultural University, Beijing, 100193, China
| | - Hongbing Han
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Guangbin Zhou
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
| |
Collapse
|
7
|
Yanga L, Zang S, Chen X, Yao X, Sun H, Liu Y, Dun W. Effects of feeding corn silage instead of peanut hay on the growth performance, meat quality and expression of growth-related genes in fattening lambs. ANIM NUTR FEED TECHN 2021. [DOI: 10.5958/0974-181x.2021.00021.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
8
|
Du YM, Du BH, Yang J, Zang S, Wang XP, Mao X, Zhang W, Jiang LP. Effect of bradykinin on rats with thromboangiitis obliterans through PI3K/Akt signaling pathway. Eur Rev Med Pharmacol Sci 2020; 23:10169-10176. [PMID: 31799689 DOI: 10.26355/eurrev_201911_19587] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the effect of bradykinin on rats with thromboangiitis obliterans (TAO) through the phosphatidylinositol 3-hydroxy kinase/protein kinase B (PI3K/Akt) signaling pathway. MATERIALS AND METHODS The female Wistar rats were injected with lauric acid via the femoral artery to establish the TAO model, and they were randomly divided into control group (healthy rats), model group (TAO rats) and bradykinin group (TAO rats injected with bradykinin B2 receptor-specific inhibitor). The control was set in each group before the operation. The level of serum bradykinin in each group was detected via enzyme-linked immunosorbent assay (ELISA), and the reactive oxygen species (ROS) level, Caspase-3 activity and PI3K/Akt protein concentration in vascular tissues were measured via ELISA, Western blotting, ROS assay, and Caspase-3 activity assay, respectively. Moreover, the specific therapeutic mechanism of bradykinin was analyzed. RESULTS In control group, the intima of the lower extremity venous tissues was smooth, the extima had no evident changes, and there was no inflammatory cell invasion around the arteries and veins. In model group, there was massive inflammatory cell invasion into the lower extremity venous tissues. In bradykinin group, fibrosis and atrophy occurred in venous tissues, the extima was thickened without fibrosis, and there was phagocytosis of neutrophils and mononuclear macrophages around the arteries and veins, as well as massive inflammatory infiltration. The PI3K/Akt protein concentration in lower extremity venous tissues was the highest in control group and the lowest in bradykinin group, and there were statistically significant differences (p<0.01). At 24 h after administration of doxorubicin (DOX), the level of ROS in lower extremity venous tissues was higher in bradykinin group than that in model group (p<0.05), and it was also higher in model group than that in control group (p<0.05). Besides, the activity of Caspase-3 in lower extremity venous tissues was significantly increased in bradykinin group compared with that in model group and control group, while it was slightly higher in model group than that in control group (p<0.05). CONCLUSIONS The low expression of bradykinin can promote TAO in rats by the mechanism that it inhibits the PI3K/Akt signaling pathway to raise the oxidative stress level, thereby aggravating TAO.
Collapse
Affiliation(s)
- Y-M Du
- Department of Vascular Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
| | | | | | | | | | | | | | | |
Collapse
|
9
|
Yang L, Zang S, Bai Y, Yao X, Zhang L. Effect of early pregnancy on the expression of progesterone receptor and progesterone-induced blocking factor in ovine lymph node. Theriogenology 2017; 93:78-83. [DOI: 10.1016/j.theriogenology.2017.01.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/24/2017] [Accepted: 01/30/2017] [Indexed: 10/20/2022]
|
10
|
Bursell SE, Zang S, Keech AC, Jenkins AJ. Evolving telehealth reimbursement in Australia. Intern Med J 2016; 46:977-81. [DOI: 10.1111/imj.13150] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 02/12/2016] [Accepted: 04/19/2016] [Indexed: 11/30/2022]
Affiliation(s)
- S.-E. Bursell
- NHMRC Clinical Trials Centre, Sydney Medical School; University of Sydney; Sydney New South Wales Australia
| | - S. Zang
- NHMRC Clinical Trials Centre, Sydney Medical School; University of Sydney; Sydney New South Wales Australia
| | - A. C. Keech
- NHMRC Clinical Trials Centre, Sydney Medical School; University of Sydney; Sydney New South Wales Australia
| | - A. J. Jenkins
- NHMRC Clinical Trials Centre, Sydney Medical School; University of Sydney; Sydney New South Wales Australia
| |
Collapse
|
11
|
Abstract
BACKGROUND AND AIM Several trials have proved the efficacy of intravenous (IV) steroids in Graves' orbitopathy (GO). However, the impact of administered dose and therapy schedule has not been assessed yet. SUBJECTS AND METHODS Nine randomized and 14 non-randomized controlled trials of IV steroids in GO were evaluated according to the applied single and cumulative doses with respect to outcome, efficacy on clinically relevant issues and adverse events. RESULTS High single (1 g per day) and cumulative (>6 g) doses of IV steroids are superior to lower single (0.5 g/d) and cumulative (<5 g) doses with respect to therapy response (84 vs 75%; p=0.034 and 83 vs 77%; ns, respectively), improvement of eye symptoms (87 vs 75%, p=0.052 and 85 vs 71%; ns, respectively) and disappearance of diplopia (32 vs 27%; ns and 48 vs 27%; p=0.08, respectively). Decrease of both clinical activity score (3 vs 2.5 points and 2.5 vs 3, ns) as well as proptosis (-1.4 vs -1.2 mm, ns and 1.5 vs 1.2, ns) are similar in both groups. However, high single and/or cumulative doses are accompanied with a 2-fold higher rate of adverse events (56 vs 28%; p<0.001 and 52 vs 33%; p=0.034, respectively). CONCLUSIONS Tailoring the IV steroid dose to severity of GO can be concluded and implies that a prospective randomized trial comparing different doses of IV steroids in active/severe GO is keenly warranted.
Collapse
Affiliation(s)
- S Zang
- Department of Medicine I, Gutenberg University Medical Centre, Mainz, Germany
| | | | | | | |
Collapse
|
12
|
Abstract
CONTEXT The administration of iv glucocorticoid pulses has been advocated as a treatment approach for patients with inflammatory and moderate to severe Graves' orbitopathy (GO). This review offers an update on this controversial regimen. EVIDENCE ACQUISITION PubMed and the MeSH-Database were searched (with no temporal limit) for the following topics: management of active and severe GO; glucocorticoid therapy of GO; iv glucocorticoid administration; mechanism and pharmacokinetics of iv glucocorticoids; and adverse events, morbidity, and mortality of iv glucocorticoids. The articles were evaluated according to their setting and study design. EVIDENCE SYNTHESIS All randomized and uncontrolled trials, consensus statement, systematic reviews, and meta-analyses dealing with the efficacy and morbidity of iv glucocorticoids in GO were identified. CONCLUSIONS The current first-line treatment for active, moderate-to-severe GO is a 12-wk course of high-dose iv glucocorticoid pulses. The response rate of this regimen is approximately 80%. Intravenous glucocorticoids have a statistically significant advantage over oral treatment and cause significantly fewer adverse events. However, major side effects related to preexisting diseases, administered dose, and treatment schedule have been reported. The morbidity and mortality of iv glucocorticoid therapy are 6.5 and 0.6%, respectively. Thus, careful patient selection is warranted. Before iv glucocorticoid administration, patients should be screened for recent hepatitis, liver dysfunction, cardiovascular morbidity, severe hypertension, inadequately managed diabetes, and glaucoma. The cumulative dose should not exceed 8 g, and with the exception of sight-threatening GO the single doses preferably should not be administered on consecutive days. Monthly monitoring during subsequent treatment is warranted.
Collapse
Affiliation(s)
- S Zang
- Department of Medicine, Gutenberg University Medical Center, Langenbeckstrasse 1, Mainz 55131, Germany
| | | | | |
Collapse
|
13
|
Zang S, Ji C, Qu X, Dong X, Ma D, Ye J, Ma R, Dai J, Guo D. A study on Notch signaling in human breast cancer. Neoplasma 2007; 54:304-10. [PMID: 17822320] [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: 05/17/2023]
Abstract
Breast cancer is one of the leading causes of cancer death in women. The Notch family of proteins plays crucial roles in determining cell fates such as proliferation, differentiation and apoptosis. A role for Notch signaling in human breast cancer has been suggested by the development of adenocarcinomas in the murine mammary gland. However, it is not clear currently whether Notch signaling is frequently expressed and activated in breast cancers. Here we show that Notch signaling is overexpressed and highly activated in breast cancers. More significantly, the attenuation of Notch signaling by gamma-secretase inhibitor can inhibit the proliferation of breast cancer cells by both causing cell cycle arrest and apoptosis. Thus, targeting Notch signaling may be of therapeutic value in breast cancers.
Collapse
MESH Headings
- Adaptor Proteins, Signal Transducing
- Amyloid Precursor Protein Secretases/antagonists & inhibitors
- Amyloid Precursor Protein Secretases/metabolism
- Apoptosis/physiology
- Basic Helix-Loop-Helix Transcription Factors/genetics
- Basic Helix-Loop-Helix Transcription Factors/metabolism
- Breast/metabolism
- Breast/pathology
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Calcium-Binding Proteins/genetics
- Calcium-Binding Proteins/metabolism
- Cell Cycle/physiology
- Cell Line, Tumor
- Cell Proliferation
- Homeodomain Proteins/genetics
- Homeodomain Proteins/metabolism
- Humans
- Intercellular Signaling Peptides and Proteins/genetics
- Intercellular Signaling Peptides and Proteins/metabolism
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Protease Inhibitors/pharmacology
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA, Neoplasm/genetics
- RNA, Neoplasm/metabolism
- Receptor, Notch1/genetics
- Receptor, Notch1/metabolism
- Receptor, Notch3
- Receptor, Notch4
- Receptors, Notch/genetics
- Receptors, Notch/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Serrate-Jagged Proteins
- Signal Transduction
- Transcription Factor HES-1
- Up-Regulation
Collapse
Affiliation(s)
- S Zang
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, P. R. China
| | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Stohl W, Xu D, Zang S, Kim KS, Li L, Hanson JA, Stohlman SA, David CS, Jacob CO. In vivo staphylococcal superantigen-driven polyclonal Ig responses in mice: dependence upon CD4(+) cells and human MHC class II. Int Immunol 2001; 13:1291-300. [PMID: 11581174 DOI: 10.1093/intimm/13.10.1291] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [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] [Indexed: 12/16/2022] Open
Abstract
Staphylococcal enterotoxin (SE) B and seven other staphylococcal superantigens (SAg), despite promoting vigorous Ig production in human peripheral blood mononuclear cell cultures, are exceedingly poor at eliciting Ig responses in cultures of spleen cells from C57BL/10J (B10) or C3H/HeJ mice. In contrast, SEB elicits Ig responses in cultures of spleen cells from human MHC class II-transgenic mice. Whereas i.p. administration of SEB (0.2-20 microg) to non-transgenic B10 mice elicits very weak in vivo Ig responses, identical treatment of CD4(+) cell-intact (but not CD4(+) cell-depleted) human MHC class II-transgenic mice elicits dramatic increases in both splenic Ig-secreting cells and serum Ig levels. Over a 2-week period, the SEB-induced in vivo Ig responses peak and then plateau or fall in association with a preferential increase in splenic CD8(+) cells. Nevertheless, in vivo depletion of CD8(+) cells has no sustained effect on SEB-driven Ig responses. Taken together, these observations demonstrate that the effects of SAg on in vivo humoral immune responses are highly CD4(+) cell dependent, are substantially CD8(+) cell independent and can be successfully investigated using human MHC class II-transgenic mice. This model system may be useful in investigating the polyclonally activating effects of microbial products (prototypic environmental insults) on the development of systemic autoimmunity.
Collapse
Affiliation(s)
- W Stohl
- Division of Rheumatology and Immunology, Keck School of Medicine, University of Southern California, 2011 Zonal Avenue, HMR 711, Los Angeles, CA 90033, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Kawakubo A, Fujigaki T, Uresino H, Zang S, Sumikawa K. Comparative effects of etomidate, ketamine, propofol, and fentanyl on myocardial contractility in dogs. J Anesth 1999; 13:77-82. [PMID: 14530944 DOI: 10.1007/s005400050030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
PURPOSE The present study was carried out to determine the direct effects of etomidate, ketamine, propofol, and fentanyl on myocardial contractility, and whether fentanyl would enhance the myocardial depression caused by propofol. METHOD The anesthetics were injected directly into the circuit that supplied blood to the left circumflex coronary artery (LCX) in anesthetized open-chest dogs. Myocardial contractility was evaluated from measurements of percent segmental shortening (%SS). RESULTS Etomidate, ketamine, and propofol significantly reduced %SS in a dose-dependent manner. The %SS values with 1.6 and 3.2 mg of etomidate were similar to those with 3.2 and 6.4 mg of ketamine, respectively, and the %SS value with 6.4 mg of propofol was similar to those with 3.2 and 6.4 mg of ketamine. Fentanyl alone had no effects on myocardial performance and did not influence the effect of propofol on %SS. CONCLUSION On the basis of clinical doses, the direct myocardial depressant effect of ketamine is more than twice as potent as that of etomidate and slightly more than that of propofol. Fentanyl has no inotropic effect and does not enhance the direct myocardial depressant effect of propofol.
Collapse
Affiliation(s)
- A Kawakubo
- Department of Anesthesia, Hamamatsu Medical Center, 328 Tomizuka, Hamamatsu, Shizuoka 432-8002, Japan
| | | | | | | | | |
Collapse
|
16
|
Lustig S, Zang S, Michalke B, Schramel P, Beck W. Platinum determination in nutrient plants by inductively coupled plasma mass spectrometry with special respect to the hafnium oxide interference. ACTA ACUST UNITED AC 1997. [DOI: 10.1007/s002160050323] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
17
|
Lustig S, Zang S, Beck W, Schramel P. Influence of micro-organisms on the dissolution of metallic platinum emitted by automobile catalytic converters. Environ Sci Pollut Res Int 1997; 4:141-145. [PMID: 19002399 DOI: 10.1007/bf02986321] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Platinum emitted by automotive catalyst converters mainly exists in the metallic form, which is not bioavailable. Several investigations showed that finely dispersed metallic platinum is dissolved in organic matrices to a significantly high degree. In an exclusion experiment, observations were made as to whether the transformation of Pt(0) and other platinum compounds is mainly of a chemical nature or is influenced by micro-organisms. A previous experiment, concerning the interaction of several platinum compounds with a clay-like humic soil was repeated under sterile conditions to rule out the influence of micro-organisms. During the time of interaction (3-60 d), no significant differences were observed between the sterile and non-sterile modes. Thus, the dissolution of metallic platinum into soluble species, observed previously within this time period, seems to be mainly of a chemical nature.
Collapse
Affiliation(s)
- S Lustig
- Institute for Ecological Chemistry, GSF-National Research Center for Environment and Health, Neuherberg, D-85758, Oberschleissheim, Germany
| | | | | | | |
Collapse
|