1.Research progress of urea-containing PET tracers targeting prostate specific membrane antigen
Hong ZHU ; Hui WANG ; Hongwei SI ; Dan ZHANG ; Dengyun CHEN ; Pengfei DAI
Acta Universitatis Medicinalis Anhui 2026;61(2):369-375
Prostate cancer is one of the most common malignant tumors of male genitourinary system. Prostate cancer has the following characteristics: insidious onset, early asymptomatic or not obvious symptoms, complex etiology and pathogenesis, long incubation period and so on. Therefore, the realization of its early diagnosis and treatment is of great significance to the prognosis of patients. Prostate-specific membrane antigen (PSMA) is a type 2 transmembrane glycoprotein that is highly expressed on the membrane of almost all primary and metastatic prostate cancer cells, and is an ideal target for prostate cancer imaging and treatment. In recent years, with the approval of urea-containing small molecule PET (positron emission computed tomography) radiopharmaceutical based on PSMA (68Ga-PSMA-11, 18F-PSMA-1007), PET-CT (positron emission computed tomography/computed tomography) has shown new potential for early diagnosis and accurate staging of prostate cancer patients. This review mainly summarizes the research progress of urea-containing PSMA PET imaging agents and finds that they have defects such as uptake in non-target tissues like the kidneys, lacrimal glands, and salivary glands. Thus, further optimizing their structure to reduce the uptake in non-target tissues, providing provide convenience for the labeling of therapeutic radiopharmaceuticals, thereby achieving the goal of integrated diagnosis and treatment, is an important development direction in this field.
2.Risk factors for early postoperative liver metastasis in pancreatic ductal adenocarcinoma and related mechanisms
Chunhui QI ; Chujun HUANG ; Pengfei LYU ; Tingkai YANG ; Bin LI ; Xiaoliang ZHU
Journal of Clinical Hepatology 2026;42(7):1738-1744
Pancreatic ductal adenocarcinoma (PDAC) is highly malignant and often has an extremely poor prognosis, and early postoperative liver metastasis is one of the key influencing factors for prognosis. With reference to the clinical and experimental studies in recent years, this article reviews the clinical risk factors for early liver metastasis after PDAC and systematically elaborates on major molecular events underlying early postoperative liver metastasis from various aspects of construction of the pre-metastatic niche in the liver driven by tumor-derived exosomes, the pro-metastatic microenvironment maintained by metastasis-associated macrophages and neutrophil extracellular traps, the invasive phenotype and liver-tropic migration of tumor cells, intrahepatic immunometabolic adaptation, and fibrotic remodeling, in order to provide a theoretical basis for perioperative risk stratification and the development of intervention strategies.
3.Impact of non-optimal temperature on 120 emergency call volume for acute alcohol intoxication: A time-series study in Wuxi City
Chao YANG ; Wanjun ZHANG ; Xiuzhu LI ; Xuhui ZHANG ; Xinliang DING ; Weijie ZHOU ; Chuncheng LU ; Pengfei ZHU
Journal of Environmental and Occupational Medicine 2025;42(10):1155-1161
Background Non-optimal temperatures pose significant threats to public health. Analyzing the association between temperature exposure and the number of emergency cases of acute alcohol intoxication can provide evidence for optimizing emergency resource allocation and response strategies. Objective To analyze the overall impact and lag effects of non-optimal temperatures on the number of 120 emergency calls for acute alcohol intoxication in Wuxi, and to assess the attributable risk, in order to provide empirical evidence for formulating climate-adaptive public health strategies. Methods Call records of acute alcohol intoxication from Wuxi's 120 emergency service, concurrent air pollutant data, and meteorological data (including daily mean temperature) were collected from January 1, 2014 to December 31, 2020. Distributed lag nonlinear modeling was used for time-series analysis, with cross-basis functions to capture the nonlinear relationship and lag effects between temperature and emergency volume. Confounding factors such as long-term trends, humidity, pollutants [ultimately including ozone (O3) and fine particulate matter (PM2.5)], day of the week, and holidays were controlled. The maximum lag period was set to 14 days. Single-day lag and cumulative lag effects of extreme temperatures were analyzed, followed by sensitivity analysis. Effects were quantified using relative risk (RR) and 95% confidence intervals (95%CI), and attributable fractions and numbers for different temperature ranges were calculated. Results A total of
4.Real-world efficacy and safety of azvudine in hospitalized older patients with COVID-19 during the omicron wave in China: A retrospective cohort study.
Yuanchao ZHU ; Fei ZHAO ; Yubing ZHU ; Xingang LI ; Deshi DONG ; Bolin ZHU ; Jianchun LI ; Xin HU ; Zinan ZHAO ; Wenfeng XU ; Yang JV ; Dandan WANG ; Yingming ZHENG ; Yiwen DONG ; Lu LI ; Shilei YANG ; Zhiyuan TENG ; Ling LU ; Jingwei ZHU ; Linzhe DU ; Yunxin LIU ; Lechuan JIA ; Qiujv ZHANG ; Hui MA ; Ana ZHAO ; Hongliu JIANG ; Xin XU ; Jinli WANG ; Xuping QIAN ; Wei ZHANG ; Tingting ZHENG ; Chunxia YANG ; Xuguang CHEN ; Kun LIU ; Huanhuan JIANG ; Dongxiang QU ; Jia SONG ; Hua CHENG ; Wenfang SUN ; Hanqiu ZHAN ; Xiao LI ; Yafeng WANG ; Aixia WANG ; Li LIU ; Lihua YANG ; Nan ZHANG ; Shumin CHEN ; Jingjing MA ; Wei LIU ; Xiaoxiang DU ; Meiqin ZHENG ; Liyan WAN ; Guangqing DU ; Hangmei LIU ; Pengfei JIN
Acta Pharmaceutica Sinica B 2025;15(1):123-132
Debates persist regarding the efficacy and safety of azvudine, particularly its real-world outcomes. This study involved patients aged ≥60 years who were admitted to 25 hospitals in mainland China with confirmed SARS-CoV-2 infection between December 1, 2022, and February 28, 2023. Efficacy outcomes were all-cause mortality during hospitalization, the proportion of patients discharged with recovery, time to nucleic acid-negative conversion (T NANC), time to symptom improvement (T SI), and time of hospital stay (T HS). Safety was also assessed. Among the 5884 participants identified, 1999 received azvudine, and 1999 matched controls were included after exclusion and propensity score matching. Azvudine recipients exhibited lower all-cause mortality compared with controls in the overall population (13.3% vs. 17.1%, RR, 0.78; 95% CI, 0.67-0.90; P = 0.001) and in the severe subgroup (25.7% vs. 33.7%; RR, 0.76; 95% CI, 0.66-0.88; P < 0.001). A higher proportion of patients discharged with recovery, and a shorter T NANC were associated with azvudine recipients, especially in the severe subgroup. The incidence of adverse events in azvudine recipients was comparable to that in the control group (2.3% vs. 1.7%, P = 0.170). In conclusion, azvudine showed efficacy and safety in older patients hospitalized with COVID-19 during the SARS-CoV-2 omicron wave in China.
5.Precise Magnetic Stimulation of the Paraventricular Nucleus Improves Sociability in a Mouse Model of ASD.
Sha LIU ; Quyang YANG ; Pengfei ZHU ; Xuan LIU ; Qingbo LU ; Jie YANG ; Jingyao GAO ; Hongbin HAN ; Zhijun ZHANG ; Ning GU ; Tao TAN ; Jianfei SUN
Neuroscience Bulletin 2025;41(10):1711-1728
Magnetic stimulation has made significant strides in the treatment of psychiatric disorders. Nonetheless, current magnetic stimulation techniques lack the precision to accurately modulate specific nuclei and cannot realize deep brain magnetic stimulation. To address this, we utilized superparamagnetic iron oxide nanoparticles as mediators to achieve precise targeting and penetration. We investigated the effects of magnetic fields with varying frequencies on neuronal activity and compared the activation effects on neurons using a 10-Hz precise magneto-stimulation system (pMSS) with repetitive transcranial magnetic stimulation in mice. Oxytocin levels, dendritic morphology and density, and mouse behavior were measured before and after pMSS intervention. Our findings suggest that pMSS can activate oxytocinergic neurons, leading to upregulation of oxytocin secretion and neurite outgrowth. As a result, sociability was rapidly improved after a one-week pMSS treatment regimen. These results demonstrate a promising magneto-stimulation method for regulating neuronal activity in deep brain nuclei and provide a promising therapeutic approach for autism spectrum disorder.
Animals
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Autism Spectrum Disorder/physiopathology*
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Paraventricular Hypothalamic Nucleus/physiology*
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Disease Models, Animal
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Transcranial Magnetic Stimulation/methods*
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Male
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Social Behavior
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Mice
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Oxytocin/metabolism*
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Mice, Inbred C57BL
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Neurons/physiology*
6.Multi-center Study on Specific IgE Antibodies to Alternaria Alternata and Aspergillus Fumigatus in Sera of Clinical Allergy Patients in Selected Provinces in China
Chao XU ; Xingyuan ZHU ; Caizhi HUANG ; Hong ZHU ; Shu WANG ; Hongxia YUAN ; Pengfei ZHAO ; Ji YAN ; Jianhua MA ; Chunlei KUANG ; Yanli XIE ; Rongcai WU ; Yu ZHANG ; Sheng LIANG ; Qunying WANG ; Yingsha DUAN ; Yiwu ZHENG
Journal of Modern Laboratory Medicine 2025;40(3):13-17
Objective To investigate the prevalence of specific IgE antibodies against Alternaria alternata and Aspergillus fumigatus in serum samples from clinical allergy patients across selected provinces in China.Methods Data on specific IgE antibodies for Alternaria A.and Aspergillus F.were collected from 20 hospital laboratories in 17 cities spanning 11 provinces.The study analyzed the levels of specific IgE and their variations across different provinces and seasons.Results A total of 27 471 cases of Alternaria A.and 32 843 cases of Aspergillus F.specific IgE data were included.The national average positive rate of Alternaria A.IgE was 10.40%,with the highest rate of 22.68%in Jiangsu and the lowest rate of 2.06%in Guangxi.For Aspergillus F.specific IgE,the average positive rate was 4.24%,with Hubei province having the highest rate(7.25%)and Hunan province the lowest(1.23%).The difference in IgE levels for both Alternaria A.and Aspergillus F.among provinces were statistically significant(H=9 955,16 993,all P<0.0001).Among patients,5.85%had Alternaria A.specific IgE levels at grade 3 or above,while only 0.57%had Aspergillus F.specific IgE levels at this level.When examining seasonal variations using data from Liaoning,Hunan and Anhui provinces,significant seasonal changes were observed for both Alternaria A.and Aspergillus F.IgE antibodies(HAlternaria A=347.6,338.0,401.3,HAspergillus F=196.6,133.7,231.7,all P<0.0001).Conclusion The sensitization to Alternaria A.and Aspergillus F.exhibits distinct geographical characteristics and vary significantly with seasons.Given the relatively high IgE levels associated with Alternaria A.,it should be given adequate clinical attention.
7.Clinical data analysis of patients with middle ear cholesteatoma diagnosed with intracranial and extracranial complications as the first diagnosis.
Hongmin LI ; Xiaodan ZHU ; Le WANG ; Yuan ZHANG ; Ling LI ; Pengfei WANG ; Fanglei YE
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(6):548-552
Objective:To explore the clinical characteristics and treatment methods of middle ear cholesteatoma with intracranial and extracranial complications as the first diagnosis. Methods:A total of 244 patients were initially diagnosed with intracranial and/or extracranial complications associated with middle ear cholesteatoma at the First Affiliated Hospital of Zhengzhou University from January 2015 to January 2022, and medical records were collected and retrospectively analyzed. Results:Among 244 patients with intracranial and extracranial complications of middle ear cholesteatoma, 203 cases had one complication, 34 cases had 2 complications, and 7 cases had 3 or more complications. One hundred and eighty-six cases presented labyrinthitis, 41 cases had peripheral facial paralysis, 27 cases had periauricular abscess, 12 cases had meningitis, 10 cases had brain abscess, 7 cases had sigmoid sinus lesions, 6 cases had epidural abscess, and 4 cases demonstrated hydrocephalus. Conclusion:The destructive nature of middle ear cholesteatoma can lead to intracranial and extracranial complications. The incidence rate of extracranial complications is highest for labyrinthitis. Patients with otitis media who complained dizziness should raise clinical suspicion for potential labyrinthitis. The second most prevalent extracranial complication is peripheral facial paralysis, and early facial nerve decompression surgery is critical for better recovery of facial paralysis symptoms. Brain abscess is the most common intracranial complications, which has the highest fatality rate. Clinicians should be alert to otogenic brain abscess. Otolaryngology and neurosurgery teams should cooperate and evaluate patients' middle ear lesions and brain abscess, and jointly develop personalized treatment plans.
Humans
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Cholesteatoma, Middle Ear/surgery*
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Retrospective Studies
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Facial Paralysis/etiology*
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Brain Abscess/diagnosis*
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Male
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Female
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Otitis Media/complications*
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Meningitis/etiology*
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Labyrinthitis/etiology*
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Adult
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Middle Aged
;
Young Adult
8.Progress on key genes in oocyte maturation and its fertilization process
Jiayao CHEN ; Zhiping ZHANG ; Shimin WANG ; Pengfei ZHU ; Xueqing WU
Chinese Journal of Reproduction and Contraception 2025;45(1):90-95
Oocyte maturation disorders and fertilization failures are caused by a variety of factors, including complex factors such as chromosomal abnormalities and poor oocyte quality. With the widespread use of high-throughput sequencing technology, more and more genetic mutations have been found to be associated with oocyte maturation and fertilization process in infertile patients. This paper summarizes and discusses 11 key genes ( TRIP13, TBPL2, LHX8, PATL2, TUBB8, CDC20, WEE2, ZP, ASTL, JUNO and CD9) related to oocyte maturation and fertilization-related disorders in females, providing a basis for research on the prevention of diseases associated with oocyte maturation blockage and fertilization failure and the development of targeted therapies.
9.Research progress on the effect of enzyme deficiencies and female reproductive health in patients with non-classical congenital adrenal hyperplasia
Shimin WANG ; Xiuping ZHANG ; Jiayao CHEN ; Pengfei ZHU ; Xueqing WU
Chinese Journal of Reproduction and Contraception 2025;45(6):637-643
Non-classical congenital adrenal hyperplasia (NCCAH), an autosomal recessive disorder, stems from genetic mutations affecting the enzymes and cofactors integral to adrenal steroidogenesis. These mutations may result in diminished activity or a complete loss of function for critical enzymes, such as 21-hydroxylase, 11β-hydroxylase, 3β-hydroxysteroid dehydrogenase, 17α-hydroxylase, and the steroidogenic acute regulatory protein (StAR). The impairment of these enzymatic processes has profound implications for reproductive health in females, mediated through both genetic and endocrine pathways. This review aims to explore the pathogenesis of various enzyme defects in different types of NCCAH, their clinical features, and their impact on female fertility. It is hoped that this will help refine the diagnostic strategies for infertility associated with NCCAH, thereby enhancing fertility of patients and providing new directions and opportunities for further research in this field.
10.Tympanoplasty and eustachian tube balloon dilatation in the treatment of adhesive otitis media
Hongmin LI ; Pengfei WANG ; Xiaodan ZHU ; Ling LI ; Yuan ZHANG ; Le WANG ; Fanglei YE
Journal of Audiology and Speech Pathology 2025;33(4):368-371
Objective To compare the clinical effect of tympanoplasty with and without eustachian tube bal-loon dilatation(ETBD)in the treatment of adhesive otitis media(AOM).Methods A total of 43 patients with AOM and eustachian tube dysfunction(ETD)were retrospectively analyzed,and were divided into the experimental group(n=22)who underwent tympanoplasty combined with ETBD and the control group(n=21)who underwent tympanoplasty alone.The changes of average air conduction hearing thresholds,pure-tone air-bone gap(ABG)and eustachian tube score(ETS)were compared between the two groups before and after surgery at 6 months and 2 years.Results There were no significant differences between the experimental group and the control group in air conduction hearing thresholds,ABG and ETS before operation(P>0.05).Comparison within both the two groups after operation:air conduction hearing thresholds and ABG in both groups were significantly reduced(P<0.05),and ETS in the experimental group was significantly higher than that before surgery(P<0.05).Comparison be-tween two groups after operation:there were no statistically significant differences in the air conduction hearing thresholds and ABG at 6 months after surgery(P>0.05),while there was statistically significant difference in ETS(P<0.05).At 2 years,there were statistically significant differences in the air conduction hearing thresholds,ABG and ETS between the two groups(P<0.05)with the experimental group showing better outcomes.Conclusion Tympanoplasty can significantly improve the postoperative hearing of AOM.Tympanoplasty combined with ETBD not only effectively improves the eustachian tube function,but also shows better long-term follow-up hearing im-provement,making it an effective treatment for AOM patients.

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