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Article: Leisure experience and mobile phone addiction: Evidence from Chinese adolescents.

Xia, Ximei / Qin, Shuhui / Zhang, Shiyin

2024 Volume 10, Issue 3, Page(s) e24834

Abstract: Background: During the Covid-19 pandemic, online learning became the mainstream because of many restrictions on interpersonal relationships. Children spent more and more time using mobile phones, which also aroused public concern.In past research on the ...

Abstract	Background: During the Covid-19 pandemic, online learning became the mainstream because of many restrictions on interpersonal relationships. Children spent more and more time using mobile phones, which also aroused public concern.In past research on the prevention of problematic mobile phone use, it was easy to neglect meaningful part of leisure. Hence, based on Davis's cognitive-behavioral model, this study was designed to verify how leisure experience influences mobile phone addiction through maladaptive cognition, which received little attention before. Methods: By convenient sampling method, it involved a sample of 1007 middle school students recruited from Northern China. We used adolescent leisure experience questionnaire, maladaptive cognition scale and mobile phone addiction scale to measure adolescents' leisure experience, maladaptive cognition and mobile phone addiction respectively. Results: The findings revealed that leisure experience was negatively correlated with maladaptive cognition (r = -0.21, p < 0.01) and mobile phone addiction (r = -0.20, p < 0.01) respectively. Maladaptive cognition was positively correlated with mobile phone addiction (r = 0.51, p < 0.01). Given gender, age and family economic conditions, the negative predictive effect of leisure experience on mobile phone addiction was significant (β = -0.18，p < 0.001). Besides, the process by which leisure experience predicted mobile phone addiction through maladaptive cognition was significant, indirect effect = -0.10, SE = 0.02, 95 % CI = [-0.13, -0.07]. Conclusions: Adolescents' great leisure experience has a positive impact on mobile phone addiction, which can be achieved by reducing maladaptive cognition. Therefore，it is significant to improve their leisure experience and guide them to perceive their irrational beliefs in leisure and rethink offline leisure and real life from more positive views.
Language	English
Publishing date	2024-01-17
Publishing country	England
Document type	Journal Article
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2024.e24834
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Article ; Online: Microwave-assisted aqueous two-phase extraction of polysaccharides from Hippophae rhamnoide L.: Modeling, characterization and hypoglycemic activity.

Yang, Yu / Li, Miao / Sun, Jingwen / Qin, Shuhui / Diao, Tengteng / Bai, Jingwen / Li, Yanhua

International journal of biological macromolecules

2023 Volume 254, Issue Pt 1, Page(s) 127626

Abstract: Natural polysaccharides are concerned for their high biological activity and low toxicity. Two kinds of polysaccharides were extracted from Hippophae rhamnoide L. by microwave-assisted aqueous two-phase system. Under the optimal conditions predicted by ... ...

Abstract	Natural polysaccharides are concerned for their high biological activity and low toxicity. Two kinds of polysaccharides were extracted from Hippophae rhamnoide L. by microwave-assisted aqueous two-phase system. Under the optimal conditions predicted by RSM model (K
MeSH term(s)	Hypoglycemic Agents/pharmacology ; Hypoglycemic Agents/chemistry ; Hippophae ; Microwaves ; Spectroscopy, Fourier Transform Infrared ; Polysaccharides/chemistry ; alpha-Amylases
Chemical Substances	Hypoglycemic Agents ; Polysaccharides ; alpha-Amylases (EC 3.2.1.1)
Language	English
Publishing date	2023-10-24
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2023.127626
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Article ; Online: Relationship Between Preoperative Hypoalbuminemia and Postoperative Pneumonia Following Geriatric Hip Fracture Surgery: A Propensity-Score Matched and Conditional Logistic Regression Analysis.

Tian, Yunxu / Zhu, Yanbin / Zhang, Kexin / Tian, Miao / Qin, Shuhui / Li, Xiuting

Clinical interventions in aging

2022 Volume 17, Page(s) 495–503

Abstract: Background: Pneumonia is a devastating complication following geriatric hip fracture surgery, and preoperative hypoalbuminemia may be a potentially modifiable factor leading to improved outcome. This study aimed to quantify the relationship between ... ...

Abstract	Background: Pneumonia is a devastating complication following geriatric hip fracture surgery, and preoperative hypoalbuminemia may be a potentially modifiable factor leading to improved outcome. This study aimed to quantify the relationship between preoperative hypoalbuminemia and postoperative pneumonia. Methods: We retrospectively reviewed the medical records of elderly patients (≥60 years) who underwent surgeries for hip fracture in a tertiary referral center between 2016 and 2020. According to the preoperative serum albumin level, they were divided into two groups: <35 g/ L and ≥35 g/ L. To reduce potential confounding, propensity score matching (PSM) in a 1:1 ratio was performed, with the caliper value set as 0.002; and further conditional logistic regression analysis was used to control the other potential confounders to determine the association strength. Results: Among 3,147 eligible patients included, PSM yielded 1,318 matched patients, with 659 in each respective group, suggesting significantly improved balance in most variables (standardized mean deviation improvement range, 20.7% to 99.1%), except for basophil count. The conditional logistic regression analysis, adjusted for PS and other intra- or post-operative variables, showed 6.18-fold (relative ratio, 6.18; 95% CI, 3.15-11.98; P<0.001) increased risk of postoperative pneumonia associated with preoperative hypoalbuminemia. Conclusion: Preoperative hypoalbuminemia was identified to be independently and highly associated with development of postoperative pneumonia in elderly patients undergoing hip fracture surgeries. However, whether the patients who had such condition may benefit from preoperative targeted nutritional support needs to be clarified by more prospective studies.
MeSH term(s)	Aged ; Hip Fractures/complications ; Hip Fractures/surgery ; Humans ; Hypoalbuminemia/complications ; Hypoalbuminemia/epidemiology ; Logistic Models ; Pneumonia/complications ; Pneumonia/etiology ; Postoperative Complications/epidemiology ; Postoperative Complications/etiology ; Propensity Score ; Prospective Studies ; Retrospective Studies ; Risk Factors ; Serum Albumin/analysis
Chemical Substances	Serum Albumin
Language	English
Publishing date	2022-04-13
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2364924-0
ISSN	1178-1998 ; 1176-9092
ISSN (online)	1178-1998
ISSN	1176-9092
DOI	10.2147/CIA.S352736
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Article ; Online: Incidence and risk factors for postoperative pneumonia following surgically treated hip fracture in geriatric patients: a retrospective cohort study.

Tian, Yunxu / Zhu, Yanbin / Zhang, Kexin / Tian, Miao / Qin, Shuhui / Li, Xiuting / Zhang, Yingze

Journal of orthopaedic surgery and research

2022 Volume 17, Issue 1, Page(s) 179

Abstract: Objective: Large sample investigations for risk factors for pneumonia in elderly patients after hip fracture surgeries are lacking. The purpose of this study is to determine the incidence and risk factors for postoperative pneumonia in geriatric ... ...

Abstract	Objective: Large sample investigations for risk factors for pneumonia in elderly patients after hip fracture surgeries are lacking. The purpose of this study is to determine the incidence and risk factors for postoperative pneumonia in geriatric patients following hip fracture operations. Methods: A retrospective study of incidence and risk factors in a tertiary referral center between 2016 and 2020 was conducted. Geriatric patients who developed postoperative pneumonia after surgeries of hip fracture during hospitalization stay were defined as cases and those without as controls. Multivariate logistic regression model was used to evaluate risk factors for postoperative pneumonia. Results: This study included 3147 patients, and 182 developed postoperative pneumonia, denoting the rate of 5.8%. In the multivariate analyses, age (OR 1.04; 95% CI 1.02-1.06), sex (males) (OR 2.27; 95% CI 1.64-3.13), respiratory disease (OR 3.74; 95% CI 2.32-6.04), heart disease (OR 1.68; 95% CI 1.14-2.47), cerebrovascular disease (OR 1.58; 95% CI 1.11-2.27), liver disease (OR 2.61; 95% CI 1.33-5.15), preoperative stay (OR 1.08; 95% CI 1.05-1.11) and general anesthesia (OR 1.61; 95% CI 1.15-2.27) were identified as independent risk factors for postoperative pneumonia. Conclusions: This study identified several risk factors for pneumonia in geriatric patients after hip fracture operations, providing a viable preventive strategy for optimizing clinical conditions for reduction of postoperative pneumonia.
MeSH term(s)	Aged ; Aged, 80 and over ; China/epidemiology ; Female ; Geriatric Assessment ; Hip Fractures/complications ; Hip Fractures/epidemiology ; Hip Fractures/surgery ; Humans ; Incidence ; Male ; Middle Aged ; Pneumonia/epidemiology ; Pneumonia/etiology ; Postoperative Complications/epidemiology ; Postoperative Complications/etiology ; Retrospective Studies ; Risk Factors
Language	English
Publishing date	2022-03-24
Publishing country	England
Document type	Journal Article
ZDB-ID	2252548-8
ISSN	1749-799X ; 1749-799X
ISSN (online)	1749-799X
ISSN	1749-799X
DOI	10.1186/s13018-022-03071-y
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Article ; Online: Effect of Dapagliflozin on Indicators of Myocardial Fibrosis and Levels of Inflammatory Factors in Heart Failure Patients.

Wang, Chuanqiang / Qin, Yiteng / Zhang, Xiaojun / Yang, Yang / Wu, Xuan / Liu, Jing / Qin, Shuhui / Chen, Ke / Xiao, Wenliang

Disease markers

2022 Volume 2022, Page(s) 5834218

Abstract: Objective: To explore the effect of dapagliflozin on the myocardial fibrosis and the levels of inflammatory factors in heart failure patients.: Methods: 60 patients with T2DM who were diagnosed as acute left heart failure or acute exacerbation of ... ...

Abstract	Objective: To explore the effect of dapagliflozin on the myocardial fibrosis and the levels of inflammatory factors in heart failure patients. Methods: 60 patients with T2DM who were diagnosed as acute left heart failure or acute exacerbation of chronic left heart failure in the Department of Cardiology of our hospital from November 1, 2020, to December 31, 2021, during hospitalization were the study subjects. According to the treatment regimen, they were divided into the experimental group (EG) which received dapagliflozin and conventional drugs and the control group (CG) which received conventional drugs, with 30 cases in each group to compare and analyze the clinical indicators such as myocardial fibrosis and inflammatory factors. Results: The levels of TNF- Conclusion: Dapagliflozin has a definite curative effect in heart failure patients with type 2 diabetes mellitus, which can effectively reduce the inflammatory response of patients and inhibit the myocardial fibrosis, and has a potential value in improving cardiac function and promoting prognosis.
MeSH term(s)	Benzhydryl Compounds ; C-Reactive Protein ; Cardiomyopathies ; Diabetes Mellitus, Type 2/complications ; Diabetes Mellitus, Type 2/drug therapy ; Fibrosis ; Glucosides ; Heart Failure/diagnosis ; Humans ; Interleukin-6 ; Tumor Necrosis Factor-alpha
Chemical Substances	Benzhydryl Compounds ; Glucosides ; Interleukin-6 ; Tumor Necrosis Factor-alpha ; dapagliflozin (1ULL0QJ8UC) ; C-Reactive Protein (9007-41-4)
Language	English
Publishing date	2022-09-05
Publishing country	United States
Document type	Journal Article
ZDB-ID	604951-5
ISSN	1875-8630 ; 0278-0240
ISSN (online)	1875-8630
ISSN	0278-0240
DOI	10.1155/2022/5834218
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Article: Modic changes of the cervical spine: T1 slope and its impact on axial neck pain.

Li, Jia / Qin, Shuhui / Li, Yongqian / Shen, Yong

Journal of pain research

2017 Volume 10, Page(s) 2041–2045

Abstract: Background: The purpose of the research was to evaluate cervical sagittal parameters on magnetic resonance imaging (MRI) in patients with Modic changes and its impact on axial neck pain.: Methods: This study consisted of 266 consecutive asymptomatic ... ...

Abstract	Background: The purpose of the research was to evaluate cervical sagittal parameters on magnetic resonance imaging (MRI) in patients with Modic changes and its impact on axial neck pain. Methods: This study consisted of 266 consecutive asymptomatic or symptomatic patients with Modic changes, whose average age was 50.9±12.6 years from January 2015 to December 2016. Cervical sagittal parameters included sagittal alignment of the cervical spine (SACS), T1 slope, thoracic inlet angle (TIA), and neck tilt (NT). The Modic changes group was compared with an asymptomatic control group of 338 age- and gender-matched adults. Results: In the Modic changes group, T1 slope was significantly higher (25.8°±6.3°) compared with that in the control group (22.5°±6.8°) ( Conclusion: T1 slope in the Modic changes group was significantly higher compared to that of the control group. The findings suggested that a higher T1 slope with broken compensation of cervical sagittal mechanism may be associated with the development of Modic changes in the cervical spine.
Language	English
Publishing date	2017-08-24
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2495284-9
ISSN	1178-7090
ISSN	1178-7090
DOI	10.2147/JPR.S144814
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Article: Effect of OPG gene mutation on protein expression and biological activity in osteoporosis.

Qin, Shuhui / Zhang, Qiuping / Zhang, Li

Experimental and therapeutic medicine

2017 Volume 14, Issue 2, Page(s) 1475–1480

Abstract: The effect of an osteoprotegerin (OPG) gene mutation was investigated on its protein expression and biological activity in osteoporosis. The pcDNA3.0-OPG plasmid or wild-type plasmid were transfected into HEK293 cells. Osteoclast tartrate-resistant acid ... ...

Abstract	The effect of an osteoprotegerin (OPG) gene mutation was investigated on its protein expression and biological activity in osteoporosis. The pcDNA3.0-OPG plasmid or wild-type plasmid were transfected into HEK293 cells. Osteoclast tartrate-resistant acid phosphatase (TRAP) staining and counting were then performed, and the expression of genes related to osteoclast differentiation and activation were measured by RT-PCR. The wild-type or mutant-type OPG at concentrations of 0, 10, 20, 50 and 100 ng/ml were added respectively to RAW264.7 cells and incubated for 24 h. The viability of cells treated with the wild-type and mutant-type OPG at a concentration of 100 ng/ml was still over 99%, which indicated that the wild-type and mutant-type OPG at this concentration had no cytotoxic effect on RAW264.7 cells. The number of TRAP-positive cells decreased with increasing concentration of wild-type or mutant-type OPG. At the concentrations of 20, 50 and 100 ng/ml, the inhibitory effect of wild-type OPG was significantly higher than that of mutant-type OPG (p<0.05). Both mutant-type and wild-type OPG inhibited the bone resorption activity of osteoclasts, and the inhibitory effect of wild-type OPG was significantly higher than that of mutant-type OPG at the concentrations of 20, 50 and 100 ng/ml (p<0.05). The levels of TRAP and RANK mRNA in the wild-type OPG treatment group were significantly lower than those in the control group, while the levels of TRAP and RANK mRNA in the mutant-type OPG treatment group were significantly lower than those in the wild-type group (p<0.05). The genetic mutation did not affect the protein expression levels of OPG, but inhibited the normal activity of OPG.
Language	English
Publishing date	2017-06-28
Publishing country	Greece
Document type	Journal Article
ZDB-ID	2683844-8
ISSN	1792-1015 ; 1792-0981
ISSN (online)	1792-1015
ISSN	1792-0981
DOI	10.3892/etm.2017.4712
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Article ; Online: Microscopic composition maps of poly(styrene-co-2-hydroxyethyl methacrylate) colloidal crystals and interconnected colloidal arrays.

Qin, Dongqi / Lian, Guoda / Qin, Shuhui / Ford, Warren T

Langmuir : the ACS journal of surfaces and colloids

2010 Volume 26, Issue 9, Page(s) 6256–6261

Abstract: Colloidal crystalline films were prepared from poly(styrene-co-2-hydroxyethyl methacrylate) (PS-HEMA) latex particles by evaporative deposition. The hexagonally ordered surfaces of the colloidal crystals (CCs) were transformed with styrene vapor at room ... ...

Abstract	Colloidal crystalline films were prepared from poly(styrene-co-2-hydroxyethyl methacrylate) (PS-HEMA) latex particles by evaporative deposition. The hexagonally ordered surfaces of the colloidal crystals (CCs) were transformed with styrene vapor at room temperature to interconnected colloidal arrays (ICAs) that have a honeycomb-like ridge of polymer surrounding hexagonally ordered dimples in the surface. When the styrene vapor temperatures were increased systematically to 45 degrees C, the regularity of ICA structure decreased and finally disappeared. Images from transmission electron microscopy (TEM) and from atomic force microscopy (AFM) show that the surfaces of the PS-HEMA particles and the ICAs have raspberry textures. Monolayer CCs and ICAs fabricated on TEM grids were analyzed by energy dispersive spectroscopy (EDS) to determine the elemental compositions of the different regions of the textured surfaces. Carbon, oxygen, and sulfur were distributed all over the surface of the CC. While carbon was distributed over the entire surface of the ICA, oxygen, sulfur, sodium, and potassium were concentrated mainly on the ridges of the honeycomb and not in the dimples of the ICA. The results are discussed in terms of a mechanism of transformation of the CC to the ICA in which styrene monomer swells the polystyrene-rich regions of the particles, and the swollen polystyrene rises to the surface. The polyHEMA-rich regions of the particles maintain the hexagonal periodicity, and liquid styrene evaporates to leave a more polystyrene-rich textured surface.
Language	English
Publishing date	2010-05-04
Publishing country	United States
Document type	Journal Article
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/la904034x
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Article: Motion of single wandering diblock-macromolecules directed by a PTFE nano-fence: real time SFM observations.

Gallyamov, Marat O / Qin, Shuhui / Matyjaszewski, Krzysztof / Khokhlov, Alexei / Möller, Martin

Physical chemistry chemical physics : PCCP

2009 Volume 11, Issue 27, Page(s) 5591–5597

Abstract: Using SFM we have observed a peculiar twisting motion of diblock macromolecules pre-collapsed in ethanol vapour during their subsequent spreading in water vapour. The intrinsic asymmetry of the diblock macromolecules has been considered to be the reason ... ...

Abstract	Using SFM we have observed a peculiar twisting motion of diblock macromolecules pre-collapsed in ethanol vapour during their subsequent spreading in water vapour. The intrinsic asymmetry of the diblock macromolecules has been considered to be the reason for such twisting. Further, friction-deposited PTFE nano-stripes have been employed as nano-trails with the purpose of inducing lateral directed motion of the asymmetric diblock macromolecules under cyclic impact from the changing vapour surroundings. Indeed, some of the macromolecules have demonstrated a certain tendency to orient along the PTFE stripes, and some of the oriented ones have moved occasionally in a directed manner along the trail. However, it has been difficult to reliably record such directed motion at the single molecule level due to some mobility of the PTFE nano-trails themselves in the changing vapour environment. In vapours, the PTFE stripes have demonstrated a distinct tendency towards conjunction. This tendency has manifested itself in efficient expelling of groups of the mobile brush-like molecules from the areas between two PTFE stripes joining in a zip-fastener manner. This different kind of vapour-induced cooperative macromolecular motion has been reliably observed as being directed. The PTFE nano-frame experiences some deformation when constraining the spreading macromolecules. We have estimated the possible force causing such deformation of the PTFE fence. The force has been found to be a few pN as calculated by a partial contribution from every single molecule of the constrained group.
Language	English
Publishing date	2009-07-21
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1476244-4
ISSN	1463-9084 ; 1463-9076
ISSN (online)	1463-9084
ISSN	1463-9076
DOI	10.1039/b819011a
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Article: Monitoring the transformation of colloidal crystals by styrene vapor using atomic force microscopy.

Qin, Dongqi / Tan, Susheng / Qin, Shuhui / Ford, Warren T

Langmuir : the ACS journal of surfaces and colloids

2005 Volume 20, Issue 8, Page(s) 3145–3150

Abstract: The stages of transformation of a colloidal crystalline film of latex spheres to a new periodic structure were imaged by atomic force microscopy. Colloidal crystalline films were prepared with 320 nm diameter poly(styrene-co-2-hydroxyethyl methacrylate) ( ...

Abstract	The stages of transformation of a colloidal crystalline film of latex spheres to a new periodic structure were imaged by atomic force microscopy. Colloidal crystalline films were prepared with 320 nm diameter poly(styrene-co-2-hydroxyethyl methacrylate) (PSt/HEMA) spheres. The hexagonally ordered surfaces of the colloidal crystalline films were transformed with styrene vapor at room temperature to a new morphology having holes in the surface and the same periodicity as the original films. The surfaces of colloidal crystals and the transformed films have a raspberry-like texture superposed on the 320 nm hexagonal periodicity. Both height images and phase images reveal that the latex spheres shrink and the transformation proceeds by an order-disorder-order sequence. The final structure is an interconnected colloidal array with smaller polystyrene particles dispersed in a continuous PSt/HEMA matrix.
Language	English
Publishing date	2005-04-18
Publishing country	United States
Document type	Journal Article
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/la030358j
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