1.Single-Neuron Reconstruction of the Macaque Primary Motor Cortex Reveals the Diversity of Neuronal Morphology.
Siyu LI ; Yan SHEN ; Yefei CHEN ; Zexuan HONG ; Lewei ZHANG ; Lufeng DING ; Chao-Yu YANG ; Xiaoyang QI ; Quqing SHEN ; Yanyang XIAO ; Pak-Ming LAU ; Zhonghua LU ; Fang XU ; Guo-Qiang BI
Neuroscience Bulletin 2025;41(3):525-530
2.A Novel Retrograde AAV Variant for Functional Manipulation of Cortical Projection Neurons in Mice and Monkeys.
Yefei CHEN ; Jingyi WANG ; Jing LIU ; Jianbang LIN ; Yunping LIN ; Jinyao NIE ; Qi YUE ; Chunshan DENG ; Xiaofei QI ; Yuantao LI ; Ji DAI ; Zhonghua LU
Neuroscience Bulletin 2024;40(1):90-102
Retrograde adeno-associated viruses (AAVs) are capable of infecting the axons of projection neurons and serve as a powerful tool for the anatomical and functional characterization of neural networks. However, few retrograde AAV capsids have been shown to offer access to cortical projection neurons across different species and enable the manipulation of neural function in non-human primates (NHPs). Here, we report the development of a novel retrograde AAV capsid, AAV-DJ8R, which efficiently labeled cortical projection neurons after local administration into the striatum of mice and macaques. In addition, intrastriatally injected AAV-DJ8R mediated opsin expression in the mouse motor cortex and induced robust behavioral alterations. Moreover, AAV-DJ8R markedly increased motor cortical neuron firing upon optogenetic light stimulation after viral delivery into the macaque putamen. These data demonstrate the usefulness of AAV-DJ8R as an efficient retrograde tracer for cortical projection neurons in rodents and NHPs and indicate its suitability for use in conducting functional interrogations.
Animals
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Haplorhini
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Axons
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Motor Neurons
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Interneurons
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Macaca
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Dependovirus/genetics*
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Genetic Vectors
3.Biallelic variants in RBM42 cause a multisystem disorder with neurological, facial, cardiac, and musculoskeletal involvement.
Yiyao CHEN ; Bingxin YANG ; Xiaoyu Merlin ZHANG ; Songchang CHEN ; Minhui WANG ; Liya HU ; Nina PAN ; Shuyuan LI ; Weihui SHI ; Zhenhua YANG ; Li WANG ; Yajing TAN ; Jian WANG ; Yanlin WANG ; Qinghe XING ; Zhonghua MA ; Jinsong LI ; He-Feng HUANG ; Jinglan ZHANG ; Chenming XU
Protein & Cell 2024;15(1):52-68
Here, we report a previously unrecognized syndromic neurodevelopmental disorder associated with biallelic loss-of-function variants in the RBM42 gene. The patient is a 2-year-old female with severe central nervous system (CNS) abnormalities, hypotonia, hearing loss, congenital heart defects, and dysmorphic facial features. Familial whole-exome sequencing (WES) reveals that the patient has two compound heterozygous variants, c.304C>T (p.R102*) and c.1312G>A (p.A438T), in the RBM42 gene which encodes an integral component of splicing complex in the RNA-binding motif protein family. The p.A438T variant is in the RRM domain which impairs RBM42 protein stability in vivo. Additionally, p.A438T disrupts the interaction of RBM42 with hnRNP K, which is the causative gene for Au-Kline syndrome with overlapping disease characteristics seen in the index patient. The human R102* or A438T mutant protein failed to fully rescue the growth defects of RBM42 ortholog knockout ΔFgRbp1 in Fusarium while it was rescued by the wild-type (WT) human RBM42. A mouse model carrying Rbm42 compound heterozygous variants, c.280C>T (p.Q94*) and c.1306_1308delinsACA (p.A436T), demonstrated gross fetal developmental defects and most of the double mutant animals died by E13.5. RNA-seq data confirmed that Rbm42 was involved in neurological and myocardial functions with an essential role in alternative splicing (AS). Overall, we present clinical, genetic, and functional data to demonstrate that defects in RBM42 constitute the underlying etiology of a new neurodevelopmental disease which links the dysregulation of global AS to abnormal embryonic development.
Female
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Animals
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Mice
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Humans
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Child, Preschool
;
Intellectual Disability/genetics*
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Heart Defects, Congenital/genetics*
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Facies
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Cleft Palate
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Muscle Hypotonia
4.Herbal Textual Research on Olibanum in Famous Classical Formulas
Haiyan ZHOU ; Qingqing WANG ; Qi ZHANG ; Suping XIAO ; Meng CHEN ; Jianxin ZHOU ; Yeda ZHANG ; Danyang JIA ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(4):55-66
By consulting the ancient and moderm literature, this paper makes a textual research on the name, origin, quality evaluation, harvesting and processing of Olibanum, so as to provide a basis for the development of the famous classical formulas containing this medicinal material. According to the herbal textual research, the results showed that Olibanum was first described as a medicinal material by the name of Xunluxiang in Mingyi Bielu(《名医别录》), until Ruxiang had been used as the correct name since Bencao Shiyi(《本草拾遗》) in Tang dynasty. The main origin was Boswellia carterii from Burseraceae family. The mainly producing areas in ancient description were ancient India and Arabia, while the modern producing areas are Somalia, Ethiopia and the southern Arabian Peninsula. The medicinal part of Olibanum in ancient and modern times is the resin exuded from the bark, which has been mainly harvested in spring and summer. It is concluded that the better Olibanum has light yellow, granular, translucent, no impurities such as sand and bark, sticky powder and aromatic smell. There were many processing methods in ancient times, including cleansing(water flying, removing impurities), grinding(wine grinding, rush grinding), frying(stir-frying, rush frying, wine frying), degreasing, vinegar processing, decoction. In modern times, the main processing methods are simplified to cleansing, stir-frying and vinegar processing. Nowadays, the commonly used specifications include raw, fried and vinegar-processed products. Among the three specifications, raw products is the Olibanum after cleansing, fried products is a kind of Olibanum processed by frying method, vinegar-processed products is the processed products of pure frankincense mixed with vinegar. Based on the research results, it is recommended to select the resin exuded from the bark of B. carterii for the famous classical formulas such as Juanbitang containing Olibanum, processing method should be carried out in accordance with the processing requirements of the formulas, otherwise used the raw products if the formulas without clear processing requirements.
5.Characteristics of human papillomavirus prevalence and genotype distribution of 18 535 cases in Yuncheng
Wugang SUN ; Haitao XIE ; Xiali CHEN ; Zhonghua LUAN ; Mengxin LU
Journal of Public Health and Preventive Medicine 2024;35(5):113-116
Objective To investigate the characteristics of human papillomavirus (HPV) prevalence and genotype distribution of 18 535 cases in Yuncheng . Methods A sample of 18535 residents who underwent HPV testing in our hospital from August 2020 to September 2023 were enrolled, and HPV genotyping was done to all samples. Then the rate of HPV infection, age distribution, genotype distribution, and multiple infections were statistically analyzed. Results Of the 18,535 subjects included, a total of 4,639 tested positive for HPV, demonstrating a positive rate of 25.03%. The positive rate of HPV infection varied among different age groups (χ2=29.587, P<0.05), with higher rates found in <25 years old group (29.61%) and >60 years old group (25.89%). Overall, 23 genotypes, covering 5315 viruses, were detected. There were 5 low-risk genotypes with the highest percentage of HPV42 (9.29%), and there were 18 high-risk genotypes with HPV52, HPV58, HPV66 and HPV53, subtypes as the most frequent subtypes, accounting for 13.64%, 8.97%, 7.41% and 7.04%, respectively. The type of HPV infection was predominantly single infections, with an overall single infection rate of 21.62% (4008/18535), which accounted for 86.40% (4 008/4 639) of all positive cases, and a multiple genotype infections rate of 3.40% (631/18535). The 25-34 year old group accounted for the largest proportion of single infections (25.12%), while the <25 year old group accounted for the largest proportion of multiple genotype infections (30.74%). Conclusion The prevalence rate of HPV infection in Yuncheng is 25.03%, with a higher positive rate in the <25 years age group and the >60 years age group. A total of 23 HPV genotypes are detected, of which the main genotypes are HPV42, HPV58, HPV66 and HPV53, and the type of infection is dominated by single infections.
6.Efficacy of zero-pressure percutaneous nephrolithotomy combined with hands-free pneumatic lithotripsy in the one-stage treatment of calculous pyonephrosis
Zhonghua WU ; Yongzhi WANG ; Ping CHEN ; Tongzu LIU ; Bing LI ; Xinghuan WANG
Journal of Modern Urology 2024;29(12):1047-1050
[Objective] To evaluate the efficacy and safety of zero-pressure percutaneous nephrolithotomy (PCNL) combined with hands-free pneumatic lithotripsy in the one-stage treatment of calculous pyonephrosis in the non-acute infection phase. [Methods] Clinical data of 15 patients' treated during Feb.2022 and Dec.2023 were retrospectively analyzed.Double-sheath negative pressure PCNL was adopted, with zero-pressure gravity perfusion where the perfusion height was at the level of the patients' kidney, not exceeding 20 cm above the kidney.Pneumatic lithotripsy was performed without the need to hold the device with hand. [Results] The median stone diameter was 28 (range 22—40) mm, with a median stone density of 1028 (range 765—1305) Hu.All operations were successful.The median operation time was 55 (range 35—90) min.Postoperative low fever (Clavien grade Ⅰ) occurred in 1 case, and high fever (Clavien grade Ⅱ) occurred in 1 case, with no complications of Clavien grade Ⅲ or above.The initial stone-free rate was 73.3%, and the stone-free rate after one month was 93.3%. [Conclusion] For patients with calculous pyonephrosis in the non-acute infection phase, one-stage treatment using zero-pressure PCNL combined with hands-free pneumatic lithotripsy demonstrates good efficacy and safety.
7.Prostate ductal adenocarcinoma with prostate mucinous adenocarcinoma: a case report and literature review
Rexiati NIHATI ; Hong CAO ; Weizhe HAN ; Zhizhuang CHEN ; Jiageng SHI ; Zhuang WU ; Yuan LYU ; Chunyong JIANG ; Tao LIU ; Yongzhi WANG ; Xinghuan WANG ; Zhonghua YANG
Journal of Modern Urology 2024;29(12):1055-1059
[Objective] To summarize the clinical manifestations, pathological characteristics, treatment options and prognosis of the world's first case of prostate ductal adenocarcinoma (PDA) complicated with prostate mucinous adenocarcinoma (PMA). [Methods] The clinical and follow-up data of a patient with PDA and PMA treated in Zhongnan Hospital of Wuhan University were retrospectively analyzed, and relevant literature in PubMed and CNKI databases was retrieved. [Results] The patient sought medical attention due to dysuria, frequent urination, urinary urgency and urinary pain for more than half a year, and was admitted to hospital 3 times in total.The initial diagnosis upon the first admission was benign prostatic hyperplasia complicated with prostatic abscess.After 2 months, the patient was readmitted due to worsening symptoms, received transurethral bladder neck incision+ cystoscopy+ transurethral plasma resection of the prostate, and postoperative diagnosis confirmed PDA with local PMA.Three months after surgery, the patient had bleeding.After auxiliary examinations revealed extensive metastasis, he received hormonal therapy.After 9 months, the patient died due to multiple lung metastases. [Conclusion] Early diagnosis has a significant impact on the treatment and prognosis, but there have been no previous reports of PDA combined with PMA, so the lack of specific biomarkers in the early stage has led to missed diagnosis or misdiagnoses.There is no specific treatment for PDA with PMA. Radical prostatectomy was not satisfactory in the treatment of this case.
8.Berberine regulates polarization of macrophages:a mechanistic study based on PI3K/Akt1 signaling pathway
Yushan CHEN ; Tingting WANG ; Zhonghua MENG ; Shasha SHANG ; Junmeng ZHENG ; Yonghua ZONG ; Chunying SI ; Yazhou LIANG ; Huaimin GUAN
Chinese Journal of Geriatric Heart Brain and Vessel Diseases 2024;26(6):694-698
Objective To explore the effect and possible mechanism of berberine on the macro-phage polarization of human myeloid leukemia monocytic cell line THP-1 induced by oxidized low-density lipoprotein(ox-LDL).Methods THP-1 cells were induced into macrophages by PMA,and then according to different concentrations of berberine,the cells were divided into con-trol group,and 5,10,20,40 and 50 μmol/L berberine groups.After intervention for 24 or 48 h,CCK8 assay was used to detect cell viability for optimal concentration and time of berberine treat-ment.PMA-induced THP-1 macrophages were assigned into blank group,model group(ox-LDL),berberine group,inhibitor group(phosphatidyl inositol 3-kinase(PI3K)inhibitor LY294002)and berberine+inhibitor group(berberine+LY294002).The contents of inducible nitric oxide syn-thase(iNOS)and TGF-β1 were detected by ELISA.qPCR was employed to measure the mRNA expression of TNF-α,arginase 1(Arg1),PI3K and protein kinase B Akt1,and Western blotting was applied to detect the protein levels of Akt1 and phosphorylated protein kinase B antibody(p-Akt1).Results In 24 h after intervention,the macrophage activity was significantly lower in the 40 and 50 μmol/L berberine groups than the control group(P<0.05),and after 48 h,the ac-tivity in all the 5 doses of berberine groups was obviously lower than that in the control group[(0.89±0.02)%,(0.82±0.03)%,(0.71±0.02)%,(0.62±0.03)%and(0.53±0.02)%vs(1.01±0.01)%,P<0.05].Berberine treatment of 20 μmol/L for 24 h had little effect on cell viability,and the dose and the time were regarded as the best concentration and time.Compared with the blank group,iNOS content and TNF-α mRNA level were increased in the model group,while TGF-β1 content,mRNA levels of Arg1,PI3K and Akt1,and p-Akt1/Akt1 protein levels were de-creased(P<0.05).iNOS content and TNF-α mRNA level were decreased,while TGF-β1 content,mRNA levels of Arg1,PI3K and Akt1 and protein levels of p-Akt1/Akt1s were increased in the berberine group than the model group(P<0.05).Compared with the berberine group,iNOS con-tent and TNF-α mRNA level were increased,while mRNA levels of Arg1,PI3K and Akt1 and protein levels of p-Akt1/Akt1 were decreased in the berberine+inhibitor group(P<0.05).Con-clusion Berberine can inhibit the inflammatory response of THP-1 macrophages induced by ox-LDL by activating PI3K/Akt1 pathway,and inhibit the M1 polarization and promote the M2 polarization of macrophages.
9.Pharmacometabolomics and mass spectrometry imaging approach to reveal the neurochemical mechanisms of Polygala tenuifolia
Li QIAN ; Bai JINPENG ; Ma YUXUE ; Sun YU ; Zhou WENBIN ; Wang ZHAOYING ; Zhou ZHI ; Wang ZHONGHUA ; Chen YANHUA ; Abliz ZEPER
Journal of Pharmaceutical Analysis 2024;14(7):1035-1046
Polygala tenuifolia,commonly known as Yuanzhi(YZ)in Chinese,has been shown to possess anti-insomnia properties.However,the material basis and the mechanism underlying its sedative-hypnotic effects remain unclear.Herein,we investigated the active components and neurochemical mechanism of YZ extracts using liquid chromatography tandem mass spectrometry(LC-MS/MS)-based pharmaco-metabolomics and mass spectrometry imaging(MSI)-based spatial resolved metabolomics.According to the results,17 prototypes out of 101 ingredients in the YZ extract were detected in both the plasma and brain,which might be the major components contributing to the sedative-hypnotic effects.Network pharmacology analysis revealed that these prototypes may exert their effects through neuroactive ligand-receptor interaction,serotonergic synapse,dopaminergic synapse,and dopaminergic synapse,among other pathways.LC-MS/MS-based targeted metabolomics and Western blot(WB)revealed that tryptophan-serotonin-melatonin(Trp-5-HT-Mel)and tyrosine-norepinephrine-adrenaline(Tyr-Ne-Ad)are the key regulated pathways.Dopa decarboxylase(DDC)upregulation and phenylethanolamine N-methyltransferase(PNMT)downregulation further confirmed these pathways.Furthermore,MSI-based spatially resolved metabolomics revealed notable alterations in 5-HT in the pineal gland(PG),and Ad in the brainstem,including the middle brain(MB),pons(PN),and hypothalamus(HY).In summary,this study illustrates the efficacy of an integrated multidimensional metabolomics approach in unraveling the sedative-hypnotic effects and neurochemical mechanisms of a Chinese herbal medicine,YZ.
10.Effect of admission mode of acute pancreatitis patients on retroperitoneal infection and prognosis
Lijun CAO ; Lu FU ; Xiang YANG ; Pinjie ZHANG ; Zhonghua LU ; Hu CHEN ; Jiahui LI ; Yun SUN
Chinese Journal of Emergency Medicine 2023;32(10):1328-1332
Objective:To explore the relevance between secondary retroperitoneal infection, as well as the outcomes, and the approach of intensive care unit (ICU) admission for the patients suffered from acute pancreatitis.Methods:Patients with acute pancreatitis admitted to the ICU of the Second Affiliated Hospital of Anhui Medical University from January 2013 to July 2022 were retrospectively analyzed. According to ICU admission approaches, the patients were divided into the emergency group (first admission or transferred from the emergency department) and the delayed group (transferred from the general wards due to disease evolution). Patients were also divided into retroperitoneal infection group and non-retroperitoneal infection group according to whether retroperitoneal infection was accompanied. Patients' baseline data including gender, age, underlying diseases, laboratory test indicators, acute physiology and chronic health evaluationⅡ score (APACHEⅡ), sequential organ failure assessment (SOFA), computed tomography severity index (CTSI), bedside index of severity in acute pancreatitis (BISAP), and acute complications were collected. Univariate and multivariate logistic regression was used to analyze the risk factors of retroperitoneal infection in patients with acute pancreatitis.Results:A total of 271 patients with acute pancreatitis were enrolled, including 95 cases in the emergency group and 176 cases in the delayed group. The cohort included 71 cases with and 200 cases without retroperitoneal infection development. The incidence of retroperitoneal infection and the 30-day mortality of patients in the delayed group, which was observed with a significantly longer ICU stay (days), [(15.4±21.3) vs. (8.6±10.8), P<0.05], were significantly higher than those in the emergency group [retroperitoneal infection incidence rate: 31.82% (56/176) vs.15.79%(15/95), 30-day mortality: 13.64%(24/176) vs. 4.21%(4/95), both P<0.05]. Univariate Logistic analysis showed significant differences in diabetes, APACHEⅡ, SOFA, CTSI and BISAP score, urea nitrogen, creatinine, blood calcium, D-D dimer, peritoneal puncture catheter drainage and ICU transferred from general wards due to disease evolution between the retroperitoneal infection group and the non-retroperitoneal infection group. Multivariate Logistic regression analysis showed that diabetes, SOFA score, CTSI score, peritoneal puncture catheter drainage and transfered from general wards to ICU due to disease evolution were independent risk factor for retroperitoneal infection in acute pancreatitis patients[odds ratio were 3.379, 1.150, 1.358, 3.855, 2.285, respectively]. Conclusions:Acute pancreatitis patients in ICU transferred from general wards are more likely to develop retroperitoneal infection, and have a higher risk of mortality and a longer ICU stay. Delayed admission to ICU, diabetes, SOFA score, CTSI score and peritoneal puncture catheter drainage are independent risk factors for retroperitoneal infection in patients with acute pancreatitis.


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