1.Current status and prospect of self-administered visual function testing tools for telemedicine
Qianyi PAN ; Xiaotong HAN ; Jiaqing ZHANG ; Lixia LUO
International Eye Science 2025;25(5):765-769
One of the significant hurdles in telemedicine, particularly in ophthalmology, is the absence of direct physical examination. This specialty depends extensively on specialized instruments that typically require proficient operators. Visual function tests are crucial for both outpatient and inpatient ophthalmic services, playing a vital role in screening, diagnosing, monitoring treatment effectiveness, and managing follow-ups for various eye conditions. The progress in mobile technology has paved the way for expanding these tests beyond traditional clinic settings, promoting the creation of patient-focused, straightforward, cost-effective, and efficient measurement tools. In light of the swift advancement of digital technologies, this article reviews the characteristics, and reliability of self-administered visual function tests tools, including visual acuity, refractive error assessment, visual field, contrast sensitivity, and color vision, along with other pertinent diagnostic tools that have been developed and validated for accuracy and repeatability through research, with a view to providing ophthalmologists and patients with scientific and practical references when selecting and using these tools, further promoting efficiency and efficacy of teleophthalmology.
2.Influence and its mechanism of allogeneic dermal papilla cells on the wound healing of full-thickness skin defects in mice
Yage SHANG ; Lixia ZHANG ; Chao HAN ; Mengyang LI ; Liang LUO ; Xujie WANG ; Dahai HU
Chinese Journal of Burns 2024;40(8):772-780
Objective:To explore the influence and its mechanism of allogeneic dermal papilla cells (DPCs) on the wound healing of full-thickness skin defects in mice.Methods:This study was an experimental study. DPCs were isolated from the whisker follicles of five 6-week-old male C57BL/6J mice by combining microdissection with collagenase digestion and were successfully identified. Eighteen 8-week-old male C57BL/6J mice were divided into phosphate buffer solution (PBS) group and DPC group according to the random number table, with 9 mice in each group, and the full-thickness skin defect wound model was created on the back of all mice. On day 2, 4, and 6 after injury, the mice in DPC group were administered 100 μL of cell suspension containing 1×10 6 DPCs of the 4 th passage by subcutaneous injection around the wound, and the mice in PBS group was administered an equal volume of PBS. On day 3, 7, 10, and 14 after injury, the wound healing and hair growth of mice in two groups were observed, and the residual wound area was measured, and the hair coverage area on the wound of mice in two groups was measured on day 14 after injury. On day 14 after injury, the wound tissue samples of mice in two groups were collected. Hematoxylin-eosin staining was performed to observe the condition of newborn hair follicles and the number was counted, Masson staining was performed to observe the collagen deposition in the dermis and the collagen deposition area was measured, the immunofluorescence method was used to detect the protein expressions of Wnt/β-catenin signaling pathway related molecules β-catenin and lymphoid enhancer binding factor 1 (Lef1), and Western blotting and real-time fluorescence quantitative reverse transcription polymerase chain reaction were used to detect the protein and mRNA expressions of β-catenin and Lef1, respectively. The number of samples in each experiment was 3. Results:Compared with those in PBS group, the mice in DPC group had accelerated wound re-epithelialization at each time point after injury, and more hair growth on day 10 and 14 after injury. On day 7, 10, and 14 after injury, the residual wound areas of mice in DPC group were (13.92±2.90), (3.69±1.78), and (1.09±0.14) mm 2, respectively, which were significantly smaller than (26.19±2.06), (10.84±3.59), and (6.75±2.11) mm 2 in PBS group, respectively (with t values of 5.85, 3.09, and 4.63, respectively, P values all <0.05). On day 14 after injury, the hair coverage area on the wound of mice in DPC group was (62±7) mm 2, which was significantly larger than (35±6) mm 2 in PBS group ( t=2.89, P<0.05). On day 14 after injury, compared with those in PBS group, the number of newborn hair follicles in the wound tissue of mice in DPC group was significantly increased ( t=5.43, P<0.05), and the dermal collagen deposition area was significantly reduced ( t=3.56, P<0.05). On day 14 after injury, both the immunofluorescence method and the Western blotting detection showed that the protein expressions of β-catenin (with t values of 5.49 and 4.25, respectively, P values all <0.05) and Lef1 (with t values of 7.50 and 11.54, respectively, P values all <0.05) in the wound tissue of mice in DPC group were significantly higher than those in PBS group; the mRNA expressions of β-catenin and Lef1 in the wound tissue of mice in DPC group were significantly higher than those in PBS group (with t values of 7.68 and 9.67, respectively, P<0.05). Conclusions:DPCs can accelerate the re-epithelialization of full-thickness skin defect wounds in mice by activating Wnt/β-catenin signaling pathway and promote hair follicle regeneration during the process of wound healing.
3.Proanthocyanidins promotes neurite outgrowth of dorsal root ganglion neurons in rat
Yingxiu CHEN ; Yingqi GUO ; Huimei ZHANG ; Qi ZHANG ; Jinkun WEN ; Li LUO ; Lixia LI
The Journal of Practical Medicine 2024;40(10):1357-1363
Objective To investigate the effect of proanthocyanidins(PC)on the neurite outgrowth of rat dorsal root ganglion(DRG)neurons.Methods In vitro,primary rat DRG neurons were cultured wtih a series of concenteation of PC to assess the effect of PC on the number and length of neurites as well as the morphology of growth cone.In vivo,the expression of growth associated protein 43(GAP43)in the early stage of injury was detected using the sciatic nerve crush model.Finally,the impact of PC on nerve growth factor(NGF)expression in DRG neurons was evaluated in vitro using immunofluorescence and ELISA.Results PC significantly increased the number and length of neurites and the number of pseudopodium in growth cones of DRG neurons.PC also promoted the expres-sion of GAP43 in the early stage of sciatic nerve injury in rats and enhanced the expression of NGF in DRG neurons.Conclusion PC may promote the neurite outgrowth by increasing the expression of NGF in DRG neurons.
4.Clinical characteristics and prognosis analysis of adult critically ill patients with autoimmune encephalitis
Kexin CHEN ; Hainan ZHANG ; Yiwen ZHOU ; Bohan LUO ; Wei WANG ; Wei LU ; Lixia QIN
Journal of Chinese Physician 2024;26(7):974-979
Objective:To explore the predictive factors for adverse clinical outcomes in critically ill adult patients with autoimmune encephalitis by analyzing their clinical characteristics and prognosis.Methods:Clinical data of patients diagnosed with " confirmed" or " possible" autoimmune encephalitis who were hospitalized in the intensive care unit (ICU) of the Department of Neurology at the Second Xiangya Hospital of Central South University from January 2015 to December 2023 were retrospectively collected. The neurological function of patients at 3, 6, and 12 months of onset was followed up, and the modified Rankin Scale (mRS) at 12 months was used as an evaluation index for clinical prognosis; Further analysis was conducted on the relationship between clinical features, auxiliary examinations, and prognosis.Results:The 12-month survival rate of critically ill adult patients with autoimmune encephalitis in our center was 90.7%(117/129), and the 6-month poor prognosis rate was 28.7%(37/129). Univariate logistic regression analysis found that age of onset ( P<0.01), presence of tumors ( P<0.01), mechanical ventilation ( P<0.01), Glasgow Coma Scale (GCS) at ICU admission ( P<0.01), Acute Physiology and Chronic Health Evaluation Ⅱ (APACHE Ⅱ) score ( P<0.01), cerebrospinal fluid glucose ( P<0.01), cerebrospinal fluid protein level ( P=0.02), epileptic waves in electroencephalography (EEG) ( P=0.03), use of glucocorticoids ( P=0.04), and time interval between initiation of intravenous immunoglobulin (IVIG) and onset ( P=0.04) were associated with prognosis. The results of multiple logistic regression analysis showed that mechanical ventilation [ P=0.01, area under the curve (AUC)=0.72)], APACHE Ⅱ score ( P=0.04, AUC=0.68), cerebrospinal fluid protein content ( P=0.04, AUC=0.65), and the time interval between initiation of IVIG and onset ( P=0.02, AUC=0.64) were independent predictive factors for the prognosis of adult critical autoimmune encephalitis. The prognostic prediction model for adult critical autoimmune encephalitis established by combining these four indicators has a higher AUC (0.85). Conclusions:Mechanical ventilation, APACHE Ⅱ score, cerebrospinal fluid protein level, and the time interval between initiation of IVIG and onset are predictive factors for poor clinical outcomes in critically ill autoimmune encephalitis in adults; The prognostic prediction model for adult critical autoimmune encephalitis established by combining these four indicators can identify patients with poor prognosis early, which is beneficial for early comprehensive management and intervention treatment to improve patient prognosis.
5.Effect of Lemiancao on Insomnia in Patients With Depressive Disorder
Lei LUO ; Wenjing XU ; Lixia LI ; Wei SUN
Acta Academiae Medicinae Sinicae 2024;46(1):49-54
Objective To investigate the effect of Lemiancao on insomnia in the patients with depressive disorder.Methods Totally 79 patients diagnosed with both insomnia and depressive disorder from February to August in 2022 in Peking University Sixth Hospital were selected and classified into a control group(n=40)and a Lemian-cao group(n =39).The Lemiancao group received routine nursing and medical treatment combined with Lemian-cao training in the morning and evening every day,while the control group received routine nursing and medical treatment.The sleep status was evaluated based on the Pittsburgh sleep quality index(PSQI),insomnia severity index(ISI),and 36-item short-form health survey(SF-36)before and after treatment.Results The general in-formation of patients showed no significant difference between the two groups(all P>0.05).After a 2-week in-tervention with Lemiancao training,the Lemiancao group showed lower PSQI and ISI scores and higher SF-36 score than the control group(all P<0.001).Conclusion Lemiancao training has therapeutic effects on in-somnia in the patients with depressive disorder.
6.Role of mesenchymal stem cells and their exosomes in the treatment of drug-induced liver injury
Guojing XING ; Longlong LUO ; Lifei WANG ; Shunna WANG ; Xiaofeng ZHENG ; Lixia LU ; Jiucong ZHANG
Journal of Clinical Hepatology 2024;40(3):633-638
The incidence rate of drug-induced liver injury (DILI) is increasing year by year with unknown mechanisms, and the treatment methods for DILI mainly include drugs, liver support systems, and liver transplantation, all of which have certain limitations. Therefore, the search for safer and more effective treatment methods has become a research hotspot at present. Studies have shown that mesenchymal stem cells and their exosomes can alleviate liver injury by reducing liver inflammation, promoting hepatocyte proliferation and regeneration, inhibiting the apoptosis of hepatocytes, improving oxidative stress, and regulating immunity. This article briefly reviews the role of mesenchymal stem cells and their exosomes in the treatment of DILI, so as to provide a reference for further research.
7.Mechanism of action of follicular helper T cells in autoimmune hepatitis
Longlong LUO ; Lifei WANG ; Guojing XING ; Ying ZHENG ; Lixia LU ; Chuyi LI ; Bin LI ; Jun MA ; Xiaohui YU ; Jiucong ZHANG
Journal of Clinical Hepatology 2024;40(7):1466-1469
Autoimmune hepatitis(AIH)is a type of chronic hepatitis caused by the attack of hepatocytes by the autoimmune system,and with the prolongation of disease course,it may gradually progress to liver cirrhosis and even hepatocellular carcinoma.Although great achievements have been made in the understanding and treatment of AIH,its etiology and pathogenesis still remain unclear.T cells play a crucial role in the development and progression of AIH,and by focusing on follicular helper T cells,this article elaborates on the research advances in follicular helper T cells in AIH,in order to provide new ideas and strategies for the clinical treatment of AIH.
8.Research advances in the mechanism of action of nucleotide-binding oligomerization domain-like receptor protein 3 inflammasome in autoimmune hepatitis
Lifei WANG ; Longlong LUO ; Guojing XING ; Lixia LU ; Bin LI ; Jiucong ZHANG ; Xiaohui YU
Journal of Clinical Hepatology 2024;40(10):2092-2097
Autoimmune hepatitis(AIH)is chronic hepatitis caused by the attack of live cells by the immune system,and at present,the pathogenesis of AIH remains unclear.Inflammasomes are important components of innate immunity and are involved in a variety of pathophysiological processes.Studies have shown that inflammatory response associated with nucleotide-binding oligomerization domain-like receptor protein 3(NLRP3)plays an important role in the pathogenesis of AIH,which mainly mediates the release of proinflammatory factors and pyroptosis,thereby participating in the pathophysiological process of AIH.Therefore,the development and progression of AIH can be delayed by inhibiting the activation of NLRP3 inflammasomes,which provides new ideas for the prevention and treatment of AIH.
9.Survey on insomnia and its influencing factors among children and adolescents in Chongqing
Chunmei LIAO ; Lixia LUO ; Ni YAN ; Yuchen ZHANG ; Gang YUAN ; Guoqing JIANG
Sichuan Mental Health 2024;37(5):451-456
Background Sleep disturbances in children and adolescents have become a global public health concern,with pronounced issues in the Western China.Despite this,research on the prevalence of insomnia and its influencing factors among children and adolescents in Chongqing is still lacking.Objective To understand the prevalence of insomnia and analyze its influencing factors among children and adolescents in Chongqing,so as to provide references for clinical interventions and preventive strategies of insomnia.Methods A stratified random sampling method was used to select 9 969 children and adolescents in Chongqing from November to December 2021.Insomnia Severity Index(ISI)and a self-designed questionnaire on awareness of core mental health knowledge were administered.Binary Logistic regression analysis was used to identify the influencing factors of insomnia in this population.Results A total of 3 578 children and adolescents(35.89%)were found to have insomnia symptoms.There were statistically significant differences in the detection of insomnia symptoms among gender,ethnicity,education level,domicile,only-child status,parental education level,introversion/extroversion,parental relationship,average monthly per capita income,family history of mental illness,medical insurance coverage,living situation and understanding of mental health knowledge(P<0.05 or 0.01).Binary Logistic regression analysis identified several risk factors for insomnia,including female gender(OR=1.301,95%CI:1.192~1.419),ethnic minority status(OR=1.163,95%CI:1.015~1.333),junior high school for education level(OR=1.985,95%CI:1.774~2.220),senior high school for education level(OR=3.085,95%CI:2.749~3.462),non-only-child status(OR=1.127,95%CI:1.013~1.253),degree of harmony between parents is not high or not harmonious[(OR=1.846,95%CI:1.669~2.041 for relatively harmonious;OR=2.524,95%CI:2.214~2.877 for generally harmonious;OR=2.452,95%CI:1.999~3.007 for not very harmonious;OR=2.926,95%CI:2.307~3.710 for very discordant)]and incomplete medical insurance coverage(OR=1.218,95%CI:1.093~1.358).Protective factors included an extroverted personality(OR=0.838,95%CI:0.766~0.917),absence of family history of mental illness(OR=0.719,95%CI:0.549~0.941),junior high school for mother's education level(OR=0.822,95%CI:0.734~0.920),senior high school or secondary specialized school for mother's education level(OR=0.862,95%CI:0.752~0.988),college and above for mother's education level(OR=0.748,95%CI:0.633~0.884)and knowledge of mental health(OR=0.854,95%CI:0.778~0.937).Conclusion The problem of insomnia among children and adolescents in Chongqing is quite serious.Risk factors for insomnia include female gender,ethnic minority status,higher education levels,being a non-only child,poor family relationships and incomplete medical insurance.Conversely,an extroverted personality,absence of family history of mental illness,higher maternal education and knowledge of mental health serve as protective factors against insomnia.
10.Research advances in mesenchymal stem cells and their exosomes in treatment of autoimmune hepatitis
Longlong LUO ; Lifei WANG ; Ying ZHENG ; Bin LI ; Lixia LU ; Chuyi LI ; Xiaohui YU ; Jiucong ZHANG
Journal of Clinical Hepatology 2023;39(12):2920-2925
Autoimmune hepatitis (AIH) is a type of chronic hepatitis caused by the autoimmune system attacking hepatocytes, and its chronic progression may lead to liver cirrhosis and even hepatocellular carcinoma. Currently, pharmacotherapy and liver transplantation are the main treatment methods for AIH, but both methods have their own limitations, which limits the clinical benefits of patients. Therefore, it is a critical issue to search for new therapeutic agents and methods. Recent studies have shown that mesenchymal stem cells (MSC) and their exosomes can improve the symptoms of patients with AIH by suppressing inflammatory response, enhancing the regeneration of hepatocytes, and regulating the immune system and thus have wide application prospects in the treatment of AIH. By summarizing related articles, this article reviews the possible mechanisms and application of MSC and their exosomes in the treatment of AIH, in order to provide new ideas for the clinical treatment of AIH.

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