1.Progress in the effect of blood indicators on retinopathy of prematurity
Wenwen TANG ; Qingmin MA ; Kejun LI ; Fang FAN ; Yize HAN ; Jing CHENG ; Linwei YAN ; Yafeng WANG
International Eye Science 2024;24(3):392-396
Retinopathy of prematurity(ROP), an abnormal vascular proliferative retinopathy of prematurity, is a serious condition that can lead to retinal detachment or blindness. With the development of neonatal medicine, the survival rate of low birth weight and low gestational age infants has been increasing, as well as the incidence of ROP. Therefore, studying ROP's pathogenesis and influencing factors is of great clinical importance. Numerous studies have been conducted on the risk factors for ROP, including gestational age, oxygen intake, mode of delivery, neonatal bronchopulmonary dysplasia, and the use of surfactants. At present, it is widely accepted both at home and abroad that preterm birth, low birth weight, and high oxygen concentration after birth are independent risk factors for ROP. In recent years, more and more scholars have found that abnormalities in blood indicators in preterm infants may be associated with the development of ROP. This article reviews the effects of platelets, haemoglobin, blood glucose, inflammatory cells, and lipids on ROP, providing a reference for identifying and preventing risk factors for ROP.
2.Pulsed electromagnetic fields inhibit knee cartilage degeneration in aged rats
Linwei YIN ; Xiarong HUANG ; Guanghua SUN ; Jing LIU ; Peirui ZHONG ; Jinling WANG ; Jiaqian CHEN ; Xing WEN ; Shaoting GAN ; Wentao HU ; Mengmeng LI ; Jun ZHOU
Chinese Journal of Tissue Engineering Research 2024;28(28):4522-4527
BACKGROUND:Pulsed electromagnetic fields,as an important physical therapy,are exactly effective in the treatment of osteoarthritis,but the mechanism has not been fully clarified. OBJECTIVE:To observe the effect of pulsed electromagnetic field on the degeneration of knee joint cartilage in aged rats. METHODS:Eight 6-month-old Sprague-Dawley rats were selected as the young group and were subjected to normal diet with no treatment.Sixteen 22-month-old Sprague-Dawley rats were randomly divided into old group(n=8)and pulsed electromagnetic field group(n=8).The rats in the pulsed electromagnetic field group were subjected to a pulsed electromagnetic field intervention,once a day,5 days per week for continuous 8 weeks.The rats in the old group were given no treatment.All rats were anesthetized and executed after 8 weeks for the detection of relevant indexes. RESULTS AND CONCLUSION:Compared with the young group,serum type Ⅱ collagen C-terminal peptide level was increased in the old group(P<0.05);compared with the old group,serum type Ⅱ collagen C-terminal peptide level was decreased in the pulsed electromagnetic field group(P<0.05).Micro-CT showed that the bone volume fraction,bone mineral density,and number of bone trabeculae decreased(P<0.05)and the trabecular separation increased(P<0.05)in the tibia of rats in the aged group compared with the young group;and the bone volume fraction,bone density,and number of trabeculae increased(P<0.05)and the trabecular separation decreased(P<0.05)in the tibia of rats in the pulsed electromagnetic field group compared with the aged group.The tibial plateau Safranin O-fast green staining showed that the articular cartilage structure of rats in the aged group was disorganized,and the number of chondrocytes was obviously reduced,and the tidal line could not be distinguished.The above results were improved in the pulsed electromagnetic field group.RT-qPCR and western blot assay showed that the mRNA and protein expression levels of matrix metalloproteinase 1,matrix metalloproteinase 13,P53 and P21 in the articular cartilage and subchondral bone of rats were elevated in the aged group compared with the young group(P<0.05)and decreased in the pulsed electromagnetic field group compared with the old group(P<0.05).To conclude,pulsed electromagnetic fields may improve osteoarthritis in aged rats by inhibiting chondrocyte senescence,alleviating articular cartilage degradation and inhibiting subchondral bone osteoporosis through suppressing the expression of P53/P21.
3.Protective effect of 10-HDA on acute cadmium chloride-induced kidney damage and autophagy protein expression
Linwei LI ; Mingxuan HUANG ; Siyu LU ; Wenqi HUANG ; Yuan GONG ; Jie CHANG
Journal of Environmental and Occupational Medicine 2024;41(2):133-138
Background Acute cadmium (Cd) exposure can cause damage to multiple tissues, with the kidney being the primary target organ. The development of Cd-induced acute kidney injury involves complex mechanisms, in which autophagy and oxidative stress play crucial roles. Objective To investigate the effect of 10-hydroxy-2-decenoic acid (10-HDA) on kidney injury in mice exposed to cadmium, and provide experimental basis for studying the pathogenesis and prevention of Cd poisoning. Methods Thirty-five male C57BL/6 mice were divided into 7 groups (each of 5 mice): control group (normal saline, intraperitoneal injection), CdCl2 group (4 mg·kg−1, intraperitoneal injection), intervention groups ( 4 mg·kg−1 CdCl2, intraperitoneal Injection + 50, 100, 150, or 200 mg·kg−1 10-HDA, oral gavage), and 10-HDA group (150 mg·kg−1, oral gavage). All treatments were given for 14 d. Twenty-four hours after the last infection, physiological indicators [blood urea nitrogen (BUN), creatinine (CRE), malondialdehyde (MDA), and superoxide dismutase (SOD)], histopathological indicators, autophagy-related proteins (Atg7, Atg5, Beclin-1, and LC3), and mitochondrial autophagy-related proteins (PINK1 and Parkin) were detected to examine the effect of 10-HDA on kidney injury caused by CdCl2. Results Compared with the control group, the body weight of mice in the CdCl2 group was significantly reduced (P<0.01); compared with the CdCl2 group, the body weight of mice after intervention with different concentrations of 10-HDA was significantly increased (P<0.01). CdCl2 significantly increased BUN and CRE in the serum samples compared with the control group (P<0.01), which was significantly reduced to varying degrees after 100, 150, and 200 mg·kg−1 10-HDA intervention (P<0.01). MDA significantly increased and SOD significantly decreased in the renal cortex following CdCl2 administration compared with the control group (P<0.01), which was resolved following 10-HDA administration at different concentrations (P<0.01). In histopathological studies, 10-HDA restored injured kidney tissues induced by CdCl2. The expression levels of autophagy proteins Atg7 and LC3-II/I were significantly increased (P<0.05), and the expression level of Beclin-1 was significantly decreased (P<0.05) in the CdCl2 group compared with the control group. The expression levels of Atg7 were reduced to varying degrees after treatment with designed concentrations of 10-HDA, the expression levels of LC3-II/I were also reduced in the 50, 150, and 200 mg·kg−1 10-HDA intervention groups, and the expression levels of Beclin-1 were increased in the 50, 100, and 150 mg·kg−1 10-HDA intervention groups (P<0.05). The expression levels of PINK1 and Parkin in the CdCl2 group and the 50 mg·kg−1 10-HDA intervention group were lower than those in the control group (P<0.01). Compared with the CdCl2 group, the expression levels of PINK1 increased to varying degrees after 100, 150, and 200 mg·kg−1 10-HDA intervention, and the expression levels of Parkin increased in all 10-HDA intervention groups (P<0.01). Conclusion The intervention using 10-HDA can lessen acute kidney injury caused by CdCl2, reduce the expression of autophagy-related proteins, and increase the expression of mitochondrial autophagy-related proteins.
4.Investigation of coordinated development between blood banks and apheresis plasma collection banks
Qun LIU ; Dunzhu GONGJUE ; Qian ZHANG ; Hui YE ; Hua SHEN ; Mingming QIAO ; Linwei LI ; Xingzhe ZHANG ; Xiangwen CHEN ; Liliang CHEN ; Yang LIU ; Yunlong ZHUANG
Chinese Journal of Blood Transfusion 2024;37(8):927-932
Objective To explore the factors that affect the coordinated development of blood banks and apheresis plas-ma collection banks(hereinafter referred to as plasma banks),and explore feasible measures for the coordinated develop-ment of blood banks and plasma banks.Methods The blood information management system and blood source information management system were used to retrieve related data of blood and plasma donation from 9 cities in Shandong province from 2017 to 2021.The number of blood donors and plasma donors and the intersection of them were analyzed.The data analysis was performed using chi-square test,and a questionnaire survey was conducted to investigate the policies and information status,as well as expectations for coordinated development for blood and plasma donation.Results From 2017 to 2021,the total number of blood donors in 9 cities was higher than that of plasma donors,both have been increasing year by year,and the increase in plasma donors was significantly higher than that of blood donors(131.78%vs 23.90%,P<0.05).The inter-section proportion of blood and plasma donors had increased from 0.45%in 2017 to 1.04%in 2021,with an increase of 131.11%.Among the administrative regions where the participating blood and plasma banks located,94.2%have not re-leased relevant policy to promote the coordinated development of blood and plasma donation.The majority(63%)expected blood banks and plasma banks to be set at a distance more than 50 km apart.The top four functional requirements for the in-terconnection between blood banks and plasma banks management information system were blood test results(94.61%),ID number(87.54%),blood and plasma donation records(85.51%)and health consultation/examination results(82.15%).The top four elements of coordinated development between blood and plasma banks were policy support(96.25%),informa-tion networking(92.36%),top-level design(87.44%)and cultural construction(86.58%).Conclusion The number of donors who donate both blood(mainly whole blood)and plasma has been increasing year by year,which deserves our close attention.To achieve the coordinated development of blood donation and plasma donation,policy support is the most crucial and fundamental means.Establishment of a standard system and the share of blood and plasma donation information is neces-sary for blood informatization construction.It was critical to promote the coordinated development of blood and plasma dona-tion and ensure blood safety with improving legislation,formulating policies for coordinated development,strengthening top-level design,standardizing the publicity of blood and plasma donation and establishing the idea that blood and plasma dona-tion are equally honorable.
5.Research progress on the pathological mechanism of meibomian gland dysfunction in diabetic patients
Yize HAN ; Kejun LI ; Qingmin MA ; Fang FAN ; Wenwen TANG ; Jing CHENG ; Linwei YAN ; Yafeng WANG
International Eye Science 2024;24(7):1098-1101
Meibomian gland dysfunction is a chronic and diffuse disease of the meibomian glands, characterized by obstruction and(or)abnormal secretion of the terminal ducts. Clinically, it can lead to tear film abnormalities and inflammation of the ocular surface, resulting in symptoms of ocular irritation and potential corneal damage that may impact visual function. Meibomian gland dysfunction can be classified into two types based on meibomian gland secretion: low secretion type and high secretion type. The low secretion type further includes acinar atrophy type and obstruction type. In recent years, research has revealed that patients with diabetes experience chronic damage to their meibomian gland tissue in the early stages of the disease, leading to structural and functional changes. The incidence and severity of meibomian gland dysfunction are higher in diabetic patients. However, there are numerous complex factors contributing to this condition in diabetes patients, and mechanisms remain unclear at present. This article reviews both domestic and international research progress on the pathological mechanism underlying meibomian gland dysfunction in diabetes.
6.The detection rate of the arc of Buhler by CTA and DSA:a meta-analysis
Luyao JI ; Gaowu YAN ; Hongwei LI ; Yong LI ; Linwei ZHAO ; Xiaoping FAN ; Jiantao DENG ; Jing YAN
Journal of Interventional Radiology 2024;33(6):604-609
Objective To discuss the detection rate of the arc of Bühler(AOB)in CTA and DSA examinations and its clinical significance.Methods A computerized retrieval of academic papers concerning AOB from the databases of PubMed,Web of Science,Scopus,Embase,Google Scholar,CBM,CNKI,WanFang,VIP and Baidu Scholar was conducted.Stata 17.0 software was used to make meta-analysis.Results A total of 11 articles including 3 837 subjects and 65 AOB cases were included in this analysis.The pooled prevalence of AOB was 1.9%(0.8%-3.2%).CTA showed a pooled prevalence of AOB of 2.0%(0.5%-4.3%)and DSA showed a pooled prevalence of AOB of 1.8%(0.5%-3.9%).Conclusion Clinically,AOB is a rarely-seen anatomical variation.The possibility of the presence of an AOB should be considered when performing the relevant abdominal surgery so as to avoid causing operation difficulties and complications such as abdominal visceral organ ischemia or bleeding.(J Intervent Radiol,2024,33:604-609)
7.Clinical characteristics and virus identification of 4 cases of monkeypox confirmed in Zhejiang province
Lianqing LOU ; Xiaofei LI ; Zhicheng CHEN ; Linfang CHENG ; Linwei ZHU ; Xiaodi ZHANG ; Juncai TU ; Teng WANG ; Xiangcheng JIA ; Haiyan SHI ; Hangping YAO
Chinese Journal of Clinical Infectious Diseases 2023;16(4):256-261
Objective:To analyze the clinical characteristics of monkeypox patients.Methods:The clinical data and laboratory findings of 4 patients with monkeypox patients diagnosed at Yiwu Central Hospital in July 2023 were analyzed. Herpes fluid and skin tissue samples were collected, the viruses were isolation and cultured in African green monkey kidney cells (Vero) and identified with whole gene sequencing.Results:All four patients were male, aged 24-35 years. All patients had male-to-male behavior within 21 days before onset of the disease. Among them, one patient has AIDS and one patient has syphilis. Four patients presented with perineal skin lesions with itching, and 3 patients were found to have enlarged lymph nodes upon admission. Laboratory testing: lymphocyte abnormality (4.57×10 9/L) in 1 case; increased procalcitonin (0.25 ng/mL) in 1 case; elevated IL-10 levels ( 7.11 ng/L and 9.42 ng/L) in 2 cases; increased IL-6 (66 ng/L) and IL-4 (3.24 ng/L) in 1 case, respectively. One case had abnormal myocardial zymogram with a elevated lactate dehydrogenase level of 313 U/L. The monkeypox virus was isolated from lesion tissue and herpes fluid, and the whole gene sequencing identified it as the B. 1.3 subtype of the IIb evolutionary branch, exhibiting typical pathological effects on Vero cells. Conclusion:The clinical manifestations of the 4 monkeypox patients confirmed in Zhejiang province are mild, patients had a definitive history of male-to-male sexual behavior and the virus strains belong to the B. 1.3 lineage of the IIb evolutionary branch.
8.Association between autoimmune diseases and thyroid dysfuction: a Mendelian randomization study
REN Shouze ; LI Zeguang ; LI Linwei ; XIA Kaiyu ; LIANG Hua
Journal of Preventive Medicine 2023;35(12):1024-1028
Objective:
To evaluate the association between autoimmune diseases (ADs) and thyroid dysfunction using a Mendelian randomization (MR) approach.
Methods:
Genetic predictors of hypothyroidism and hyperthyroidism were collected through the UK Biobank, including 337 159 individuals and 10 894 596 single nucleotide polymorphisms (SNPs). Genetic predictors of 6 ADs including systemic lupus erythematosus (SLE), ankylosing spondylitis (AS), type 1 diabetes mellitus (T1DM), rheumatoid arthritis (RA), primary biliary cholangitis (PBC), and multiple sclerosis (MS) were collected through the GWAS Catalog database, including 14 267 individuals and 7 071 163 SNPs, 22 647 individuals and 99 962 SNPs, 24 840 individuals and 12 783 129 SNPs, 58 284 individuals and 13 108 512 SNPs, 13 239 individuals and 1 124 241 SNPs, and 38 589 individuals and 156 632 SNPs. MR analysis was performed using the inverse-variance weighted (IVW) method. The horizontal pleiotropy was assessed using the MR-Egger regression, and sensitivity analysis was conducted with the leave-one-out.
Results:
IVW results showed that a higher risk of hypothyroidism was associated with T1DM (OR=1.007, 95%CI: 1.003-1.011, P<0.05), SLE (OR=1.005, 95%CI: 1.002-1.009, P<0.05), and RA (OR=1.013, 95%CI: 1.009-1.016, P<0.05); a higher risk of hyperthyroidism was associated with T1DM (OR=1.002, 95%CI: 1.001-1.003, P<0.05) and SLE (OR=1.002, 95%CI: 1.001-1.003, P<0.05).
Conclusions
Genetically predicted ADs are associated with an increased risk of thyroid dysfunction. A higher risk of hypothyroidism is associated with T1DM, SLE and RA; a higher risk of hyperthyroidism is associated with T1DM and SLE.
9.Application of pathway nursing combined with multimodal exercise intervention in patients with tumor -associated sarcopenia under multi -disciplinary team
Huan DUAN ; Jia HUO ; Fengxia CHEN ; Linwei LI ; Xiuqing PAN ; Xinjie CHENG ; Na SHI
Chinese Journal of Modern Nursing 2023;29(17):2320-2325
Objective:To explore the application effect of pathway nursing combined with multimodal exercise intervention in patients with tumor-associated sarcopenia under multi-disciplinary team.Methods:Using the convenient sampling method, a total of 120 patients with tumor-associated sarcopenia who visited Cancer Center of Henan Provincial People 's Hospital from January 2020 to December 2021 were selected as the research objects. They were divided into the observation group ( n=60) and the control group ( n=60) according to the random number table method. The control group received routine nursing care, while the observation group received multi-disciplinary team pathway nursing combined with multimodal exercise. Skeletal Muscle Mass Index (SMI) , Hand Grip Strength (HGS) , daily walking speed, Cancer Fatigue Scale (CFS) and Irritability, Depression and Anxiety Scale (IDA) scores were compared and analyzed between the two groups. Results:After 4 weeks of intervention, HGS and daily walking speed in the observation group were higher than those in the control group, and the differences were statistically significant ( P<0.05) . After 4 weeks of intervention, the total score of CFS in the observation group was lower than that in the control group, and the scores of physical fatigue, emotional fatigue and cognitive fatigue in the observation group were lower than those in the control group, and the differences were statistically significant ( P<0.05) . After 4 weeks of intervention, the total IDA score of the observation group was lower than that of the control group, and the scores of anxiety, depression, extroversion and introversion stimulation were lower than those of the control group, and the differences were statistically significant ( P<0.05) . Conclusions:Multi-disciplinary team pathway care combined with multimodal exercise can improve the physical fitness of patients with tumor-associated sarcopenia, increase the level of physical activity, relieve fatigue and reduce negative emotions such as anxiety, depression and irritation.
10.A pentapeptide enabled AL3810 liposome-based glioma-targeted therapy with immune opsonic effect attenuated.
Jinyang LI ; Jiasheng LU ; Haiyan GUO ; Jianfen ZHOU ; Songli WANG ; Kuan JIANG ; Zhilan CHAI ; Shengyu YAO ; Xiaoyi WANG ; Linwei LU ; Cao XIE ; Yi CHEN ; Weiyue LU
Acta Pharmaceutica Sinica B 2021;11(1):283-299
AL3810, a molecular dual inhibitor of the vascular endothelial growth factor receptor (VEGFR) and fibroblast growth factor receptor (FGFR), has earned the permission of phase II clinical trial for tumor treatment by China FDA. As a reversible ATP-competitive inhibitor, AL3810 targets ATP-binding site on intracellular region of VEGFR and FGFR, whereas, AL3810 lacking interplay with extracellular region of receptors rendered deficient blood-brain tumor barrier (BBTB) recognition, poor brain penetration and unsatisfactory anti-glioma efficacy. Integrin


Result Analysis
Print
Save
E-mail