1.Severe Intravascular Large B-cell Lymphoma Presenting as Pulmonary Arterial Hypertension: A Case Report
Jianhua LI ; Wei HUANG ; Qing ZHANG ; Weiyuan LUO ; Yanqiong WU ; Xiukai CHEN
Medical Journal of Peking Union Medical College Hospital 2026;17(1):115-119
Intravascular large B-cell lymphoma(IVLBCL) is a rare and aggressive type of lymphoma with diverse and nonspecific clinical manifestations, often leading to misdiagnosis. This article reports a case of IVLBCL in a middle-aged male patient who initially presented with pulmonary arterial hypertension(PAH). The patient exhibited progressive hypoxemia and PAH, showing poor response to standard PAH therapy. Laboratory tests indicated a hyperinflammatory state and significantly elevated lactate dehydrogenase levels, while imaging revealed diffuse bilateral lung lesions. Random skin biopsy identified atypical B lymphocytes within subcutaneous capillaries, confirming the diagnosis of IVLBCL. Following treatment with the ZR-CHOP regimen, the patient's symptoms and laboratory parameters improved markedly. By reviewing relevant literature, this article systematically outlines the diagnostic and therapeutic process of this case, aiming to provide insights for the clinical recognition of such rare presentations.
2.Ancient and Modern Application and Key Information Analysis of Classic Formula Erchentang
Qing TANG ; Lyuyuan LIANG ; Jialei CAO ; Lan LIU ; Hejia WAN ; Chengxin LUO ; Bingqi WEI ; Yamin KONG ; Bingxiang MA ; Wenli SHI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(1):262-270
Erchentang is a classic formula widely used by medical practitioners throughout history. In this paper,ancient and modern literature of Erchentang were collected, and bibliometrics was employed to analyze its historic evolution,prescription meaning,herbs origin, processing method,preparation methods, and clinical application. A total of 84 pieces of data were collected, and 58 pieces of data involving 53 ancient medical Chinese books were screened, sorted, and processed. Combined with research of modern scholars,the research has found that the Erchentang originated from the Taiping Huimin Huiye Shijie Fang compiled by the Imperial Medical Bureau of the Song Dynasty. The basic information about the origin of the drugs is quite clear. Pinelliae rhizoma in the formula is the dried tuber of Pinellia ternata. Citri exocarpium rubrum is the dried mature peel of Citrus reticulata and its cultivated varieties, with the inner white membrane removed. Poria is the whitest dry sclerotia of Poria cocos; Glycyrrhizae radix et rhizoma is the dried root and rhizome of the Glycyrrhiza uralensis. The dosage is 5.70 g Pinelliae rhizome and Citri exocarpium rubrum, 3.43 g Poria, and 1.69 g Glycyrrhizae radix et rhizoma praeparata cum melle. During the decoction process, the above-mentioned herbs should be chopped, with 300 mL water, 7 g ginger in thick slices, and 2 g Mume fructus added, and it was then simmered together to 180 mL. After removing the medicinal residue, it can be taken warmly. Erchentang has the effect of drying dampness and resolving phlegm, regulating Qi and harmonizing the middle. It can be used in treating the syndrome of phlegm and dampness,as well as symptoms such as frequent cough,white phlegm,fullness in chest and diaphragm,nausea and vomiting,limb drowsiness,anorexia,dizziness,palpitations,white and greasy tongue coating, and slippery pulse. The above results provide reference for future research and development of Erchentang.
3.Influencing factors for condom use among men who have sex with men
LIU Jing ; ZHU Han ; YIN Jue ; XIA Manman ; LU Yi ; DAI Qing ; GU Chengjie ; LUO Zhen
Journal of Preventive Medicine 2026;38(2):115-118
Objective:
To investigate the status of condom use and its influencing factors among men who have sex with men (MSM), so as to provide a basis for improving condom utilization rates and AIDS prevention and control in this population.
Methods:
From May to October 2024, a snowball sampling method was employed to recruit MSM in Songjiang District, Shanghai Municipality. Self-administered questionnaires were used to collect data on demographic characteristics, AIDS-related knowledge, sexual behaviors, pre-exposure prophylaxis (PrEP) and post-exposure prophylaxis (PEP), and condom use in the past six months. Multivariable logistic regression model was used to analyze the influencing factors for consistent condom use.
Results:
A total of 921 MSM were surveyed, with a median age of 29.00 (interquartile range, 9.00) years. Among them, 697 (75.68%) were aware of AIDS-related knowledge, 826 (89.69%) expressed willingness to use PrEP, and 835 (90.66%) were willing to use PEP. Additionally, 787 (85.45%) MSM reported their age at first homosexual intercourse as ≥18 years, while 519 (56.35%) reported consistent condom use in the past six months. Multivariable logistic regression analysis revealed that MSM who were aware of AIDS-related knowledge (OR=0.582, 95% CI: 0.423-0.801), willing to use PrEP (OR =0.611, 95% CI: 0.385-0.969), and whose age at first homosexual intercourse was <18 years (OR=0.480, 95% CI: 0.330-0.700) were less likely to consistent use condoms.
Conclusion
The proportion of consistent condom use among the MSM remains relatively low, which is primarily associated with AIDS-related knowledge, willingness to use PrEP, and the age at first homosexual intercourse.
4.Current status and associated factors of sleep problems among preschool children in Hainan Province
Chinese Journal of School Health 2026;47(4):517-521
Objective:
To understand the current status and associated factors of sleep problems among preschool children in Hainan Province, so as to provide scientific evidence for improving sleep health in this population.
Methods:
From January 2021 to June 2022, a total of 4 105 preschool children aged 3-6 years from 62 kindergartens in Hainan Province were selected using stratified cluster random sampling method. Demographic information and lifestyle habits were collected through the Hainan Province Child Growth and Development Survey Questionnaire. The Children s Sleep Habits Questionnaire (CSHQ) was employed to assess sleep status. Unconditional binary Logistic regression model was applied to investigate the associated factors of sleep problems among preschool children.
Results:
The overall CSHQ score for children was 58.03±18.84, with 80.95% of preschool children exhibiting sleep related issues. The top three most prevalent sleep problem domains were bedtime resistance (72.42%), sleep anxiety ( 54.88 %), and parasomnias (38.86%). Logistic regression analysis revealed that higher family annual income ( OR=0.60, 95%CI = 0.45-0.79), higher maternal education level ( OR=0.53, 95%CI =0.32-0.89), regular or daily vitamin D supplementation ( OR=0.77, 95%CI =0.60-0.99), and fully self initiated eating behavior ( OR=0.71, 95%CI =0.59-0.85) were negatively related with children s sleep problems; in addition, screen exposure ( OR=1.27, 95%CI =1.06-1.51) and picky eating ( OR= 1.47 , 95%CI =1.21-1.78) were positively related to children s sleep problems (all P <0.05).
Conclusion
The high detection rate of sleep problems among preschool children in Hainan Province is multifactorially associated with family environment, dietary habits, and lifestyle behaviors.
5.Study on the capture of Helicobacter pylori released from Candida using immunomagnetic bead
Tingting LUO ; Jianchao SUN ; Tingxiu YANG ; Xiaoli XU ; Guzhen CUI ; Qing LUO ; Shuwei ZHUO ; Qi LIU ; Zhenghong CHEN
Acta Universitatis Medicinalis Anhui 2026;61(3):402-408
ObjectiveTo investigate the ability of clinically isolated, Helicobacter pylori (H. pylori)-specific gene polymerase chain reaction (PCR)-positive gastric, vaginal, and fecal Candida to release H. pylori. MethodsResuscitate 4 strains of H. pylori -specific 16S rDNA and ureA gene PCR-positive Candida strains isolated in laboratory from clinical sources, including 1 strain of gastric Candida, 1 strain of fecal Candida, 2 strains of vaginal Candida and the standard Candida albicans strain ATCC10231 (Ca10231). The presence of H. pylori-specific ureA in the 5 strains of Candida isolates was confirmed by PCR. The aforementioned strains of Candida and H.pylori were inoculated into urea medium and cultured in a constant temperature incubator at 37 ℃. The color change of the medium was observed daily. A change in the medium's color from yellow to red indicated the presence of urease activity. Then, the five strains of Candida and H. pylori were co-incubated with the magnetic beads coated with H. pylori antibodies respectively. Scanning electron microscopy (SEM) was employed to observe the presence of bacilli adsorbed on the surface of the magnetic beads. PCR was used to detect the presence of H.pylori-specific 16S rDNA and ureA genes on magnetic beads. ResultsThe PCR analysis of the ureA gene in the four Candida isolates was positive, whereas the Ca10231 strain tested negative. Upon culturing the four Candida isolates on urea medium, the medium color changed from yellow to red which was determined to be urease positive, while the medium containing Ca10231 remained unchanged, which was urease negative. SEM revealed that bacilli could be observed on the surface of magnetic beads co-incubated with the 4 strains of Candida of clinical origin and H.pylori isolate. Specifically, PCR testing of the magnetic beads co-incubated with one vaginal Candida, one gastric Candida and H.pylori isolate showed positive results for the 16S rDNA and ureA genes of H. pylori; however, the PCR tests for the two genes were negative for the magnetic beads co-incubated with the other two Candida isolate. ConclusionThis study demonstrates that H. pylori-specific genes Candida can release H. pylori.
6.Epidemiological characteristics of poisonous mushroom-related foodborne disease incidents in Chongqing in 2010-2024
Qing LUO ; Shuquan LUO ; Ping FENG ; Rongsheng FU ; Longfeng CHENG ; Ya WU ; Jingrong CHEN
Journal of Public Health and Preventive Medicine 2026;37(4):36-40
Objective To analyze the epidemiological characteristics of poisonous mushroom-related foodborne disease incidents in Chongqing from 2010 to 2024, and to provide a scientific basis for effective prevention and control of mushroom-related foodborne diseases. Methods Data of poisonous mushroom related foodborne disease incidents reported by the CDCs of 39 districts and counties in Chongqing from 2010 to 2024 were collected, and their epidemic characteristics were analyzed. Results A total of 264 poisonous mushroom poisoning outbreaks were reported in Chongqing from 2010 to 2024, resulting in 1 046 cases of illness, 543 hospitalizations, and 15 deaths, with a mortality rate of 1.43%. The peak of poisoning incidents was from June to October, accounting for 89.02% of the total number of incidents. The top three high-incidence areas were Pengshui Miao Tujia Autonomous County, Dianjiang County, and Nanchuan District. Poisonous mushroom poisoning incidents occurring in household settings, accidental picking and ingestion, and cases involving unidentified mushroom species accounted for 89.02%, 83.33%, and 90.15% of all foodborne disease outbreak incidents, respectively. Conclusion Foodborne disease incidents related to poisonous mushrooms in Chongqing City show an upward trend, and the effectiveness of prevention and control needs to be improved. Based on their seasonal, regional and household clustering characteristics, efforts should be made before the peak season of mushroom poisoning in high-risk areas, targeting key populations with health education, monitoring and early warning, food safety supervision, and medical treatment.
7.Mechanism of high glucose-regulated SIRT6 expression affecting the functions of retinal pigment epithelial cells and vascular endothelial cells
Qian ZHANG ; Mingxiu LUO ; Yu GUO ; Feiyang LUO ; Yuan MA ; Qing YAO
International Eye Science 2026;26(10):1698-1709
AIM: To investigate the effects of high-concentration glucose on the cell viability of retinal pigment epithelialcells(ARPE-19)/ human umbilical vein endothelial cells(HUVEC)cells, as well as on the expression levels of sirtuin 6(SIRT6).
METHODS:ARPE-19 and HUVEC cells were cultured for 48 h in media containing various glucose concentrations(5.5, 25, 50, 75, 100 mmol/L)and cellular morphology was observed under an optical microscope.Cell viability was assessed using the CCK-8 assay. Flow cytometry was utilized to evaluate apoptosis levels, and Western blot analysis was conducted to measure the expression of Bcl-2 and SIRT6. ARPE-19/HUVEC cells were treated with 50 mmol/L glucose for 48 h, after which immunofluorescence staining was performed to determine the subcellular localization and expression level of SIRT6 protein. In parallel, cells receiving the same treatment were harvested at different time points(0, 6, 12, 24, 36, 48, and 72 h), and the temporal changes in SIRT6 protein expression were assessed by Western blot analysis. SIRT6 overexpressing stable ARPE-19/HUVEC cell lines were constructed. Western blot was performed to detect the effects of SIRT6 overexpression on the expression levels of glucose transporters in ARPE-19/HUVEC cells treated with high glucose(50 mmol/L glucose).
RESULTS:Compared with the 5.5 mmol/L glucose group, cell number was decreased and cell viability was significantly reduced in ARPE19/HUVEC cells with increasing glucose concentrations(all P<0.01). Meanwhile, the protein expression level of SIRT6 was markedly downregulated(P<0.05). Such inhibitory effects exhibited both concentration-and time-dependent patterns(all P<0.05). Furthermore, high glucose induced cell apoptosis and downregulated the protein expression of Bcl-2(P<0.05). Immunofluorescence staining revealed that SIRT6 protein was predominantly localized in the nucleus after 48 h of high-glucose treatment, accompanied by pyknosis and nuclear fragmentation. After incubation with highg-lucose medium(50 mmol/L glucose)for different durations, long-term high-glucose intervention was found to reduce SIRT6 protein expression in ARPE19/HUVEC cells. Successful construction of the SIRT6-overexpressing stable ARPE-19/HUVEC cell lines was confirmed via immunofluorescence and Western blotting. Western blot analysis revealed that, compared with the HG+LV-con group, the HG+LV-SIRT6 group exhibited no significant differences in GLUT1 or GLUT4 expression in ARPE-19 cells, whereas GLUT3 expression was elevated(P<0.05). Compared with the HG+LV-con group, the HG+LV-SIRT6 group showed no significant change in GLUT1 expression, while GLUT3 and GLUT4 levels were increased(both P<0.05).
CONCLUSION:High-concentration glucose-reduce the proliferative activity of ARPE-19/HUVEC cells, induce apoptosis, and downregulate SIRT6 expression. SIRT6 may alleviate high glucose-induced retinal cell damage by promoting the expression of glucose transporters.
8.Progress on the role of carboxyhemoglobin in neonatal hemolytic jaundice accompanied with myocardial injury
Xin QING ; Jimo ZHU ; Yu LUO ; Binzhi TANG
International Journal of Pediatrics 2025;52(10):681-684
Neonatal jaundice is commonly seen in early postnatal days,and is partly caused by hemolysis. It has been found that hemolytic jaundice in neonates is often accompanied with myocardial injury,which may pose a threat to their health. However,the pathogenic mechanism remains unclear. This review focuses on the potential mechanisms of myocardial injury associated with hemolytic jaundice,particularly highlighting the role of carboxyhemoglobin(COHb)as a potential contributor. Emerging evidence suggests that COHb,a hemolytic metabolite,can cause myocardial injury through mechanisms such as influencing oxygen metabolism and exerting cytotoxic effects,particularly in neonates who are susceptible to hypoxia. The review aims to summarize the latest research progress in this field,to facilitate early prediction,early detection,and timely intervention for hemolytic jaundice accompanied with myocardial injury,while providing novel therapeutic strategies and targets.
9.Efficacy Observation of Filiform-Heated Needle Stimulation on Myofascial Trigger Points Based on the"Pivot Mechanism"Theory for Treating Neck-Shoulder Myofascial Pain Syndrome
Xuanling CHEN ; Xiaolin YE ; Qian XIE ; Shuxiong LUO ; Aiguo XUE ; Qing SONG
Journal of Guangzhou University of Traditional Chinese Medicine 2025;42(7):1693-1699
Objective To observe the clinical efficacy of filiform-heated needle stimulation on myofascial trigger points(MTrPs)based on the"pivot mechanism"theory in treating neck-shoulder myofascial pain syndrome(MPS).Methods Sixty-four patients diagnosed with neck-shoulder MPS from the Acupuncture Department(inpatient and outpatient)of Guangzhou University of Chinese Medicine Dongguan Hospital between January 2023 and September 2023 were selected and randomly divided into a control group and an observation group using a random number table,with 32 cases per group.The control group received oral administration of Celecoxib Capsules,while the observation group received additional filiform-heated needle therapy.The treatment duration was 2 weeks and 1 course per week.Clinical efficacy was evaluated after 2 weeks,with observing the changes in the Short-Form McGill Pain Questionnaire(SF-MPQ)scores,Neck Disability Index(NDI)scores.The cervical range of motion(ROM)was compared between the two groups.Results(1)After treatment,the SF-MPQ scores of the two groups of patients were significantly improved(P<0.05),and the observation group was significantly superior to the control group in improving the SF-MPQ scores,and the difference was statistically significant(P<0.05).(2)After treatment,the NDI scores of patients in the two groups were significantly improved(P<0.05),and the observation group was significantly superior to the control group in improving the NDI scores,and the difference was statistically significant(P<0.05).(3)After treatment,the cervical joint mobility of patients in the two groups was significantly improved(P<0.05),and the observation group was significantly superior to the control group in improving cervical joint mobility,with a statistically significant difference(P<0.05).(4)The total effective rate was 96.88%(31/32)in the observation group and 84.38%(27/32)in the control group.The efficacy of the observation group was superior to that of the control group,and the difference was statistically significant(P<0.05).Conclusion Filiform-heated needle stimulation on MTrPs based on the"pivot mechanism"theory significantly alleviates pain,improves soft tissue injury,and enhances neck-shoulder mobility in patients with neck-shoulder MPS,demonstrating remarkable clinical efficacy.
10.Simultaneous Analysis of Microcystins,Cylindrospermopsin,Anatoxin,and Nodularin in Lake Water by Liquid Chromatography-Tandem Mass Spectrometry
Guanxiang YUAN ; Qing LUO ; Guihua LIU ; Xiaoyun QIN ; Honghe LIU ; Zhaoying LÜ ; Jie JIANG
Journal of Sichuan University (Medical Sciences) 2025;56(5):1189-1196
Objective To establish a method for simultaneous determination of trace levels of microcystins,cylindrospermopsin,anatoxin,and nodularin in lake water based on liquid chromatography-tandem mass spectrometry(LC-MS/MS).Methods After being adjusted to alkaline conditions and mixed with six internal standards,the water samples were enriched using dual HLB and ENVI-Carb cartridges.The eluates were then evaporated under nitrogen,reconstituted,and subjected to instrumental analysis.Both water and acetonitrile containing 0.1%formic acid were used as mobile phases.An ACQUITY UPLC? BEH C18 column(150 mm×2.1 mm,1.7 μm)was selected to separate the target cyanotoxins.Multiple reaction monitoring was applied for data acquisition,and quantification was accomplished using internal standard methods.Results Within certain concentration ranges,all 14 cyanotoxins examined in the study showed good linearity,with all correlation coefficients greater than 0.998.When the water volume was 100 mL,the limits of detection and quantification for the 14 cyanotoxins were 0.1-0.9 ng/L and 0.3-2.9 ng/L,respectively,and spiked recoveries and relative standard deviations were 81.7%-132.9%and 1.2%-14.9%,respectively.In the 10 lake water samples analyzed,cylindrospermopsin,anatoxin-α,and multiple microcystins were detected.Conclusion The method developed in the study has high-throughput capacity,as well as high sensitivity,accuracy,and reliability.The method can be applied in the simultaneous detection of microcystins,cylindrospermopsin,anatoxin,and nodularin in lake water.


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