1.The Genus Acervus from Southwestern China and Northern Thailand
Ming ZENG ; Qi ZHAO ; Eleni GENTEKAKI ; Kevin D. HYDE ; Yongchang ZHAO
Mycobiology 2020;48(6):464-475
Acervus (Pyronemataceae, Pezizales) is a saprobic genus in Pezizomycetes, characterized by colored apothecia, subcylindrical to cylindrical asci and guttulate ascospores. We collected four Acervus samples from China and Thailand. Descriptions and illustrations are introduced for all fresh samples. One new record of A. globulosus from Thailand, one new species, A. rufus, two known species, A. epispartius and A. stipitatus from China are reported. Phylogenetic analysis based on five genes, the large subunit rRNA (LSU), the translation elongation factor-1 alpha (tef1-α), the second largest subunit of RNA polymerase II (rpb2), the largest subunit of RNA polymerase II (rpb1), and the small subunit rRNA (SSU), revealed the distinct position of the new species. The new species is set apart by its red apothecia. A key to Acervus species is also given.
2.The Genus Acervus from Southwestern China and Northern Thailand
Ming ZENG ; Qi ZHAO ; Eleni GENTEKAKI ; Kevin D. HYDE ; Yongchang ZHAO
Mycobiology 2020;48(6):464-475
Acervus (Pyronemataceae, Pezizales) is a saprobic genus in Pezizomycetes, characterized by colored apothecia, subcylindrical to cylindrical asci and guttulate ascospores. We collected four Acervus samples from China and Thailand. Descriptions and illustrations are introduced for all fresh samples. One new record of A. globulosus from Thailand, one new species, A. rufus, two known species, A. epispartius and A. stipitatus from China are reported. Phylogenetic analysis based on five genes, the large subunit rRNA (LSU), the translation elongation factor-1 alpha (tef1-α), the second largest subunit of RNA polymerase II (rpb2), the largest subunit of RNA polymerase II (rpb1), and the small subunit rRNA (SSU), revealed the distinct position of the new species. The new species is set apart by its red apothecia. A key to Acervus species is also given.
3.Urinary stone composition analysis of 15 269 cases from a single center
Weizhou WU ; Jian HUANG ; Xiongfa LIANG ; Fangling ZHONG ; Yongchang LAI ; Tao ZENG ; Dong CHEN ; Lili OU ; Yeping LIANG ; Guohua ZENG ; Wenqi WU
Chinese Journal of Urology 2018;39(9):651-655
Objective To investigate the distribution characteristics and changing tendency of urinary tract stones.Methods From January 2011 to May 2017,clinical data of 15 269 patients treated in our center was retrospectively reviewed.The stone components were detected by the automatic stone infrared spectroscopy system and the predominant components were recorded.There were 9 019 male patients and 6 250 female patients.The patients were divided into four groups according to their age,including group A ≤ 18 years;group B 19-40 years;group C 41-60 years;and group D > 60 years.Compared the distribution characteristics of urinary tract stones of patient in different groups of sex,age and calendar year.Results Calcium oxalate stones were more prevalent in males than females [6 221 (69.0%)vs.3 582 (57.3%),P < 0.001],but calcium phosphate stones [210 (3.4%) vs.210 (2.3%)],magnesium ammonium phosphate stones [230(3.7%) vs.165 (1.8%)] and carbonate apatite stones [1 328 (21.3%) vs.1 030 (11.4%)] were more common in females than males (P < 0.001,respectively).The proportion of uric acid stones in group D [679(20.7%)] was higher than that in group A [23(9.1%)],group B[260(7.9%)],group C [1 163 (13.8%)] (P <0.001,respectively).The peak of carbonate apatite stones was showed in group B [652(19.7%)] (P<0.001,respectively).Ammonium urate stones [9(3.5%)] and cystine stones [36 (14.2%)] were more frequent in group A(P <0.001,respectively).In adults,the percentage of uric acid stones increased with age,such as group B [260(7.9%)],group C [1 163(13.8%)],group D [679 (20.7%)].And the carbonated apatite stones decreased with age,such as group B [652 (19.7%)],group C [1 270(15.1%)],group D [416(12.7%)] (P <0.001,respectively).Further analysis showed the proportion of calc ium oxalate (OR =0.944,95 % CI 0.927-0.962,P < 0.001),ammonium urate stones (OR =0.854,95% CI 0.742-0.982,P =0.027) decreased,while calcium phosphate (OR =1.192,95% CI 1.127-1.261,P <0.001),uric acid (OR =1.042,95% CI 1.015-1.069,P =0.002) and ammonium magnesium phosphate (OR =1.078,95% CI 1.019-1.141,P =0.009) stones increased with time.Conclusions The distribution of stones was different in genders and age.Calcium oxalate stones were more common in male patients,while ammonium magnesium phosphate and carbonate apatite stones were more common in female patients.Uric acid stones were more frequent in patients older than 60,while carbonate apatite were more frequent in the 19-40 age group.The proportion of calcium oxalate and ammonium urate stones showed a downward trend,whereas calcium phosphate,uric acid and magnesium ammonium phosphate stones increased with time.
4.Urodynamics quality in southwest China: a multicenter random study
Xiao ZENG ; Jiapei WU ; Deyi LUO ; Qiwu WANG ; Kai LIU ; Peng WANG ; Juan WEN ; Yongchang PU ; Hong WU ; Xiao XIAO ; Zhenxing HU ; Qiuyue ZHONG ; Hong SHEN
Chinese Journal of Urology 2021;42(6):455-461
Objective:To retrospectively analyze the urodynamics quality in Southwest China, and find out the main issues of urodynamics quality in Southwest China and try to find out the improvement ways.Methods:In this study, a two-stage sampling method was used.In the first stage, 10 medical institutions in Southwest China were selected by cluster sampling from March to June, 2020.In the second stage, according to the development of UDS in Southwest China, the sample size estimation formula was adopted, and the loss of follow-up rate in reports extraction was considered, the initial sample size was 350. As the workload of UDS in the 10 medical institutions involved in the study was equivalent, 35 urodynamics traces from each medical institution were selected. The initial samples should also meet the inclusion criteria: ①patients with clear medical history and complete clinical data; ②UDS traces were clear; ③UDS system was water filled system; ④age>18, and 150 urodynamic traces were included in the final study. We evaluated the quality of enrolled urodynamics traces, and the quality evaluation standard according to the guidelines established by the International Continence Society (ICS). The evaluation conducted by two independent urologist with more than 10 years working experience. Artifacts were divided into non-technical artifacts: abnormal abdominal pressure changes, urine volume <150 ml when did the uroflow test, and technical artifacts: non-standard zero setting, fail to record all urodynamics parameters, baseline drift, catheter displacement, misjudgment of detrusor physiological contraction and detrusor overactive in voiding phase, misjudgment between detrusor overactive and bladder low compliance in filling phase.Results:non-technical artifacts: 32 cases were found abnormal abdominal pressure changes (21.3%), 21 cases (14.0%) were found when did the uroflow test the urine volume <150 ml, and technical artifacts: Non-standard zero setting in 28 cases (18.7%), fail to record all urodynamics parameters in 8 cases, baseline drift in 16 cases, catheter displacement in 9 cases and misjudgment of detrusor physiological contraction and detrusor overactive in voiding phase in 12 cases, misjudgment between detrusor overactive and bladder low compliance in filling phase in 24 cases (16.0%).Conclusions:At present, the urodynamics quality in Southwest China need to be improved. The main issues were that the operator didn’t obey the basic operation and quality control process, and the operator did not have enough basic knowledge of urodynamics. It can be improved by strictly carry out the operation standard of UDS, identifying and correcting artifacts in time, and promoting the standardized urodynamic training courses.
5.Study on the Pharmacodynamic Substances of Simiao Wan for Treatment of Hyperuricemia and Gout Based on Disease and Syndrome Model
Yongchang ZENG ; Shaoyu LIANG ; Junhong WU ; Dandan XU ; Changqing LIU ; Kang HE ; Yu JIN ; Zhengzhi WU
Traditional Chinese Drug Research & Clinical Pharmacology 2024;35(8):1152-1162
Objective To explore the pharmacodynamic substances of Simiao Wan for the treatment of hyperuricemia and gout.Methods The pharmacological model of hyperuricemia was established.The chemical components in vivo and in vitro of Simiao Wan were analyzed by UPLC-Q-Exactive-MS.Based on the components absorbed in blood,the"active ingredient-target-pathway"network of Simiao Wan for regulating hyperuricemia and gout was constructed by network pharmacology method.The key ingredients were used for molecular docking with key targets[uricogenase(XDH),uric acid transporter(ABCG2,GLUT9,OAT1,URAT1)and inflammatory targets(PTGS2,TLR2,TLR4)]of hyperuricemia and gout.Finally,experimental verification was conducted according to the results of molecular docking.Our aim is to identify the key pharmacodynamic substances of Simiao Wan for the treatment of hyperuricemia and gout.Results Eighty-nine components of Simiao Wan were identified by UPLC-Q-Exactive-MS analysis,including 74 components absorbed in blood,which were confirmed as candidate ingredients.Network pharmacology was used to constructed"components absorbed in blood-target-pathway"network,and components absorbed in blood were matched with 116 targets of hyperuricemia and 173 targets of gout.It is involved in the regulation of biological processes,such as glucose and lipid metabolism,oxidative stress,inflammatory response,ERK1 and ERK2 cascade,MAPK cascade,PI3K signal transduction.Moreover,Simiao Wan plays a role in regulating the network of hyperuricemia and gout through regulating blood lipids and atherosclerosis,apoptosis,AGE-RAGE,TNF,PI3K-Akt,MAPK,TLRs,JAK-STAT,NF-κB and other signaling pathways.Molecular docking studies showed that berberine,phellodendrine,magnoflorine,jatrorrhizine,palmatine,obacunone,limonin,atractylodin,taxifolin,atractylenolide Ⅲ and β-ecdysterone had good affinity with uric acid synthase,uric acid transporter and inflammatory targets.Western Blot test showed that taxifolin negatively regulates the expression of URAT1.The above-mentioned compounds were the main pharmacodynamic substances of Simiao Wan for the treatment of hyperuricemia and gout.Conclusion This article describes the main pharmacodynamic substances of Simiao Wan in the regulation of hyperuricemia and gout,which can provides a scientific basis for the clinical application,improvement in quality evaluation and standard of Simiao Wan.
6.Intracranial activity of first-line immune checkpoint inhibitors combined with chemotherapy in advanced non-small cell lung cancer.
Zhe HUANG ; Fang WU ; Qinqin XU ; Lianxi SONG ; Xiangyu ZHANG ; Zhan WANG ; Li DENG ; Yongchang ZHANG ; Liang ZENG ; Nong YANG
Chinese Medical Journal 2023;136(12):1422-1429
BACKGROUND:
Immune checkpoint inhibitors (ICIs) are increasingly used as first-line therapy for patients with advanced non-small cell lung cancer (NSCLC) harboring no actionable mutations; however, data on their efficacy among patients presenting with intracranial lesions are limited. This study aimed to explore the efficacy and safety of ICIs combined with chemotherapy in advanced NSCLC patients with measurable brain metastasis at initial diagnosis.
METHODS:
Our study retrospectively analyzed clinical data of a total of 211 patients diagnosed with driver gene mutation-negative advanced NSCLC with measurable, asymptomatic brain metastasis at baseline from Hunan Cancer Hospital between January 1, 2019 and September 30, 2021. The patients were stratified into two groups according to the first-line treatment regimen received: ICI combined with chemotherapy ( n = 102) or chemotherapy ( n = 109). Systemic and intracranial objective response rates (ORRs) and progression-free survival (PFS) were analyzed. Adverse events were also compared between the groups.
RESULTS:
Compared with the chemotherapy-based regimen, the ICI-containing regimen was associated with a significantly higher intracranial (44.1% [45/102] vs . 28.4% [31/109], χ2 = 5.620, P = 0.013) and systemic (49.0% [50/102] vs . 33.9% [37/109], χ2 = 4.942, P = 0.019) ORRs and longer intracranial (11.0 months vs . 7.0 months, P <0.001) and systemic (9.0 months vs . 5.0 months, P <0.001) PFS. Multivariable analysis consistently revealed an independent association between receiving ICI plus platinum-based chemotherapy as a first-line regimen and prolonged intracranial PFS (hazard ratio [HR] = 0.52, 95% confidence interval [CI]: 0.37-0.73, P <0.001) and systemic PFS (HR = 0.48, 95% CI: 0.35-0.66, P <0.001). No unexpected serious adverse effects were observed.
CONCLUSION:
Our study provides real-world clinical evidence that ICI combined with chemotherapy is a promising first-line treatment option for driver gene mutation-negative advanced NSCLC patients who present with brain metastasis at initial diagnosis.
CLINICAL TRIAL REGISTRATION
https://www.clinicaltrials.gov/ , OMESIA, NCT05129202.
Humans
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Carcinoma, Non-Small-Cell Lung/genetics*
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Lung Neoplasms/genetics*
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Immune Checkpoint Inhibitors/therapeutic use*
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Retrospective Studies
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Brain Neoplasms/genetics*