1. Diagnosis and treatment of spontaneous rupture of renal pelvis caused by pelviureteric junction obstruction in infants
Chinese Journal of Urology 2019;40(9):695-698
Objective:
To analyze the clinical features of spontaneous rupture of the renal pelvis (SRRP) in infants caused by UPJO.
Methods:
A retrospective analysis of 7 cases of SRRP in infants caused by UPJO in our hospital from October 2013 to October 2018 was performed. All the patients included 5 males and 2 females. The average age was(12.0±6.1) months(ranging 2 days-25 months). 3 cases suffered renal rupture in left side and 4 cases suffered renal rupture in right side. 2 cases had grade Ⅲ hydronephrosis and 5 cases had grade Ⅳ hydronephrosis. Other symptoms included fever in 4 cases, digestive symptoms in 3 cases, oliguria in 2. 7 cases were revealed RBC(+ + + )with urinary occult blood positive in urine test. 6 cases were found the white blood cells in urine was more than 8/μl. 3 cases had the elevated blood C-reactive protein.3 cases suffered with renal function insufficiency, which the creatinine was more than 110 μmol/L. The 2 cases of urinary extravasation was found in the posterior abdominal cavity and 2 in posterior abdominal cavity and abdominal cavity by CT enhanced scan. 4 cases performed open pyeloplasty, nephrostomy and perirenal drainage.2 cases performed pyeloplasty, nephrostomy, abdominal and perirenal drainage. 1 case performed perirenal drainage and retrograde indwelling Double-J stents.
Results:
All operation performed successfully. The median operation time was 84 min (ranging 45-90 min). The estimate blood loss was 15 ml (ranging 10-35 ml)without any transfusion. The median time of postoperative perirenal drainage tube was 3 d (ranging 2-5 d), The median time of the abdominal drainage tube was 5 d (ranging 3-7 d), the median time of nephrostomy was 12 d (ranging 10-14 d). The median hospital stay was 14 d (ranging 10-21 d). The median follow-up was 18 months (ranging 3-36 months). One performed the second stage pyeloplasty after double-J stents removed, and the renal function gradually recovered.
Conclusions
The SRRP in infants caused by UPJO is rare and easily misdiagnosed. The degree of hydronephrosis and inflammation may be important factors affecting the spontaneous rupture of pediatric renal pelvis. When it occurs, it requires active intervention by the operation, while treating the stenosis of the UPJ and draining the extravasation of urine.
2.Progress in biofixation of CO2 from combustion flue gas by microalgae.
Yixin ZHANG ; Bingtao ZHAO ; Kaibin XIONG ; Zhongxiao ZHANG ; Xiaohong HAO ; Tao LIU
Chinese Journal of Biotechnology 2011;27(2):164-171
Global warming caused by the increasing CO2 concentration in atmosphere is a serious problem in the international political, economic, scientific and environmental fields in recent years. Intensive carbon dioxide capture and storage (CCS) technologies have been developed for a feasible system to remove CO2 from industrial exhaust gases especially for combustion flue gas. In these technologies, the biofixation of CO2 by microalgae has the potential to diminish CO2 and produce the biomass. In this review, the current status focusing on biofixation of CO2 from combustion flue gases by microalgae including the selection of microalgal species and effect of flue gas conditions, the development of high efficient photobioreactor and the application of microalgae and its biomass product were reviewed and summarized. Finally, the perspectives of the technology were also discussed.
Air Pollutants
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isolation & purification
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metabolism
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Air Pollution
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prevention & control
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Biodegradation, Environmental
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Carbon Dioxide
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isolation & purification
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metabolism
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Microalgae
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metabolism
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Photochemistry
3.Role and mechanism of neuroinflammation in early brain injury after subarachnoid hemorrhage
International Journal of Cerebrovascular Diseases 2024;32(4):310-315
The pathophysiological mechanisms of subarachnoid hemorrhage (SAH) include early brain injury (EBI) and delayed cerebral ischemia. In recent years, researches have mainly focused on EBI. After blood enters the subarachnoid space, it can cause neuronal apoptosis, blood-brain barrier disruption, brain edema and neuroinflammation. Red blood cells and their metabolites activate resident immune cells in central nervous system and recruit peripheral inflammatory cells tinto the subarachnoid space, inducing neuroinflammation. The latter plays an important role in EBI and has a significant impact on the outcome of patients with SAH. This article reviews the role of neuroinflammation in EBI after SAH.
4. Novel mutations of ITGB2 induced leukocyte adhesion defect type 1
Yi LIN ; Hongying ZHENG ; Yuwei XIAN ; Hong CHANG ; Ke LEI ; Bingtao WANG ; Qiuye ZHANG
Chinese Journal of Pediatrics 2018;56(8):617-622
Objective:
To investigate the pathogenic mechanism of two novel ITGB2 mutations in leukocyte adhesion defect type 1 (LAD1).
Methods:
The clinical history and blood sample of an 11 years old patient admitted to Affiliated Hospital of Qingdao University in August 2014 were collected. Expression of CD18 (encoded by ITGB2) was analyzed by flow cytometry. Novel ITGB2 mutations were identified by next-generation sequencing technology and confirmed by Sanger sequencing. The functional effect of ITGB2 mutations was detected by PolyPhen2. Expression vectors of both wild type and mutant ITGB2 were constructed and transfected into mammalian cells for analysis of protein stability and subcellular location.
Results:
The symptoms of the patient (recurrent infections, lowered alveolar ridge and hypodontia) supported the diagnosis of LAD1. Expression of CD18 on the leukocytes was significantly decreased (0.2%) compared with the control samples from the parents (paternal: 99.0%; maternal: 99.1%). The patient was identified to be compound heterozygous for ITBG2 c.954del G (novel mutation) and c.1802C>A (paternal originated). ITGB2 c.954 del G was confirmed to be a harmful frameshift mutation; ITGB2 c.1802C>A was also predicted to be harmful. In terms of protein stability. There was no significant difference between mutant D18 and wild type. However, subcellular location analysis showed the mutant D18 could not locate on cell membrane.
Conclusion
The compound heterozygous of ITGB2 mutations (c.954del G and c.1802C>A) decreases the expression and impairs the location of CD18 on leukocytes, which leads to LAD1.
5.Application of"Hong's One Stitch Method"in pancreaticoduodenectomy
Jilong HU ; Qiyun LI ; Bingtao ZHANG ; Zhinan ZHENG ; Li SUN
Journal of Shenyang Medical College 2024;26(2):131-135
Objective:To investigate the effect of Hong's One Stitch Method in pancreaticoduodenectomy(PD).Methods:A total of 40 patients who underwent PD in our hospital from Jan 2021 to Dec 2022 were divided into two groups according to random number table method,with 20 patients in each group.The control group was treated with end to end pancreatojejunal anastomosis,and the observation group was treated with"Hong's One Stitch Method".The perioperative indicators,complications,secondary surgery,mortality and quality of life were compared between the two groups.Results:The pancreatoenteroanastomosis time,operation time and hospitalization time in the observation group were shorter than those in the control group,and the incidence of pancreatic fistula was lower than that in the control group(P<0.05).There were no significant differences in intraoperative blood loss,pancreatic biochemical leakage,bile fistula,hemorrhage,localized abdominal infection,gastric emptying obstruction,pulmonary infection,secondary surgery and mortality between the two groups(P>0.05).The mental health score,emotional function score,social function score,energy score,general health status score,body pain score,and physiological function score in the observation group were higher than those in the control group(P<0.05).Conclusion:In PD surgery,the application of"Hong's One Stitch Method"to perform pancreatoenterostomy is beneficial to shorten the pancreatoenterostomy time,operation time and hospitalization time,accelerate the postoperative recovery,reduce the incidence of pancreatic fistula,and improve the quality of life of patients.
6.Depression recognition based on frequency-space domain fusion and 3D-CNN-Attention
Jianshang WANG ; Bingtao ZHANG ; Xiaomin WANG ; Dachuan YAN
Chinese Journal of Medical Physics 2024;41(10):1307-1314
A three-dimensional feature construction method based on spectral information is presented,in which the power values of each channel are arranged into two-dimensional feature vectors based on electrode positions.The different frequency band features are arranged into a three-dimensional integral feature tensor to extract the information in frequency domain.Meanwhile,in order to reduce the influence of volume conductor effect,functional connectivity is utilized to map the temporal electroencephalogram data to the spatial brain functional network for extracting the spatial information.By analyzing the relationship between features and target classes,a 3D-CNN-Attention network model is proposed to incorporate an Attention mechanism in 3D-CNN network to enhance the electroencephalogram feature learning capability.A series of comparative experiments on publicly available datasets show that 3D-CNN-Attention network framework outperforms other methods in depression detection,obtaining an accuracy rate of up to 96.32%.The proposed method provides an effective solution for depression detection.
7.Study of metabonomics on pharmacological action appraisal Rhizoma coptidis in rats.
Guoliang XU ; Xiaoxue MA ; Qiyun ZHANG ; Bingtao LI ; Liping HUANG ; Riyue YU ; Hongning LIU
China Journal of Chinese Materia Medica 2009;34(14):1845-1847
OBJECTIVEHPLC-MS/MS-based metabonomics method was used to find the possible biomarker of Rhizoma Coptidis in rat urine.
METHODSprague-Dawley rats were successively administrated 7 g x kg(-1) aqueous extract of Rhizoma Coptidis for 30 days, urine were collected by metabolism cages and detected by using the HPLC-MS-MS. All dates were analyzed by the principal component analysis (PCA) through using the SIMCA-P 10.0 software.
RESULTThe PCA demonstrated that the metabolome between treated group and control group had difference in rat urine sample after of 22 days administrated, for treated group 169 kinds of biomarkers were found including oxalacetic acid, malic acid, 2-ketoglutaric acid, NE, arachidonic acid, 5-HIAA and other compounds, the result was consistent with pharmacological effects of R. coptidis, such as antiinflammatory, inhibiting biosynthesis of CA biosynthesis, anticentral nerve and energy metabolism inhibition.
CONCLUSIONMetabonomics may be available in pharmacological action evaluation of drugs.
Animals ; Drugs, Chinese Herbal ; analysis ; pharmacology ; Male ; Metabolomics ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Urine ; chemistry
8.Analysis of MYO7A gene mutation in a family with non-syndromic autosomal recessive deafness.
Shengran WANG ; Litao QIN ; Keyue DING ; Bingtao HAO ; Shasha BIAN ; Zhaokun WANG ; Qingqing WANG ; Xin WANG ; Weihua ZHANG ; Shixiu LIAO
Chinese Journal of Medical Genetics 2019;36(10):965-969
OBJECTIVE:
To explore the genetic basis for a family with non-syndromic autosomal recessive deafness.
METHODS:
The proband and her parents were subjected to physical and audiological examinations. With genomic DNA extracted from peripheral blood samples, next-generation sequencing was carried out using a panel for deafness genes. Suspected mutation was validated by Sanger sequencing and qPCR analysis of her parents.
RESULTS:
The proband presented bilateral severe sensorineural hearing loss at three days after birth. Her auditory threshold was 110-120 dBnHL but with absence of vestibular and retinal symptoms. Her brother also had deafness but her parents were normal. No abnormality was found upon physical examination of her family members, while audiological examination showed no middle ear or retrocochlear diseases. Next-generation sequencing identified compound heterozygous mutations of the MYO7A gene, including a previously known c.462C>A (p. Cys154Ter) and a novel EX43_46 Del, which were respectively derived from her mother and father.
CONCLUSION
The compound heterozygous mutations of the MYO7A gene probably underlie the disease in this family. Our findings has enriched the mutation spectrum for non-syndromic autosomal recessive deafness 2.
Female
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Hearing Loss, Sensorineural
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genetics
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High-Throughput Nucleotide Sequencing
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Humans
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Male
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Mutation
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Myosins
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genetics
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Pedigree
10.Triptolide Promote Neuronal Plasticity with Cerebral Ischemia-reperfusion Injury by Regulating the cAMP/PKA/BDNF Signaling Pathway
Bingtao MU ; Minfang GUO ; Jingwen YU ; Huiyu ZHANG
Chinese Journal of Modern Applied Pharmacy 2024;41(7):911-916
OBJECTIVE
To study the efficacy evaluation of triptolide(TP) in rats with cerebral ischemia-reperfusion(I/R) injury and its mechanism.
METHODS
Rat brain I/R injury model was copied by middle cerebral artery wire embolism surgery, and TP (0.1, 0.2 mg·kg−1) was given to the treatment group, and set the sham surgery group. The Longa score method was used to measure the neural function of rats, and Niselferi staining was used to show the morphology of neurons in the ischemic side brain tissue of rats, immunofluorescence was used to detect the expression levels of MAP2 and Syn in ischemic lateral brain tissue. The expression levels of cAMP, PKA, BDNF, Syn and PSD-95 were detected by Western blotting.
RESULTS
Compared with the model group, the neurological scores of TP treatment group decreased significantly(P<0.01 or P<0.001), it had a protective effect on damaged neurons. Compared with the model group, cAMP, PKA, BDNF, Syn and PSD-95 in TP treatment group were significantly up-regulated.
CONCLUSION
TP treatment can significantly improve I/R injury, and the mechanism may be related to the activation of the cAMP/PKA/BDNF signaling pathway.