1.Engineering and application of Komagataella phaffii as a cell factory.
Yufei LIU ; Ying CAO ; Liye CHANG ; Conghui SHAN ; Kun XU
Chinese Journal of Biotechnology 2023;39(11):4376-4396
Nowadays, engineered Komagataella phaffii plays an important role in the biosynthesis of small molecule metabolites and protein products, showing great potential and value in industrial productions. With the development and application of new editing tools such as CRISPR/Cas9, it has become possible to engineer K. phaffii into a cell factory with high polygenic efficiency. Here, the genetic manipulation techniques and objectives for engineering K. phaffii are first summarized. Secondly, the applications of engineered K. phaffii as a cell factory are introduced. Meanwhile, the advantages as well as disadvantages of using engineered K. phaffii as a cell factory are discussed and future engineering directions are prospected. This review aims to provide a reference for further engineering K. phaffii cell factory, which is supposed to facilitate its application in bioindustry.
Saccharomycetales/genetics*
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Genetic Techniques
2.Brain functional connectivity in lower limb amputees
Shaowen LIU ; Conghui WEI ; Xinying SHAN ; Yan ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2022;28(1):90-94
Objective To investigate the changes of functional brain connectivity over multiple frequency bands in resting-state electroencephalography (EEG) for lower limb amputation patients. Methods Resting-state EEG was collected from 18 lower limb amputees and 22 healthy controls from November, 2020 to June, 2021. Functional connectivity matrix was constructed with phase-locked values (PLV), and compared between groups. Results The functional connectivity was weaker in the amputees than in the controls on α band (t = 3.433, P = 0.001) and β band (t = 3.806, P = 0.001), and there was no significant difference on δ band (t = 1.429, P = 0.161) and θ band (t = 1.211, P = 0.233). Conclusion EEG functional connectivity weakens in lower limb amputees in on the α and β band, which results in neuroplasticity of multiple brain regions, not only for limb-respond cortex, but also for frontal, temporal and occipital cortices.
3.Correlation of type 2 diabetes and impaired glucose regulation with chronic kidney disease in middle-aged and elderly individuals.
Qiangmei WANG ; Jieyu ZHEN ; Conghui GUAN ; Nan ZHAO ; Jinjin LIU ; Hongli LI ; Songbo FU ; Xulei TANG ; Yanping HAN ; Shan SU ; Di ZHANG ; Lijuan LIU ; Donghu ZHEN
Journal of Southern Medical University 2020;40(10):1457-1464
OBJECTIVE:
To explore the correlation of different glucose metabolism statues with chronic kidney disease (CKD) in middle-aged and elderly individuals in Lanzhou.
METHODS:
Based on the baseline data of REACTION Study in Lanzhou area, we randomly sampled 10 038 residents aged 40-75 years in 3 communities in Lanzhou, who were classified into normal glucose tolerance (NGT), impaired glucose regulation (IGR) and diabetes groups. The estimated glomerular filtration rate (eGFR) and urinary albumin-to-creatinine ratio (ACR) were used to assess the renal function and albuminuria, respectively. Binary logistic regression was performed to analyze the contribution of the risk factors to CKD. Polynominal regression was used to determine the trends of eGFR with the increment of ACR.
RESULTS:
Among all the participants, the prevalences of albuminuria, CKD and renal insufficiency (RI) were 26.2%, 27.4% and 2.5%, respectively. The prevalence of albuminuria, CKD and RI were significantly higher in the diabetes group than in IGR and NGT groups (
CONCLUSIONS
Diabetes mellitus is a significant risk factor for albuminuria and RI, while IGR is not. Screening for albuminuria and eGFR is highly recommended for individuals with diabetes, hypertension, and obesity, especially in women and the elderly population.
Adult
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Aged
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Albuminuria/epidemiology*
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Diabetes Mellitus, Type 2/epidemiology*
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Female
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Glomerular Filtration Rate
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Glucose
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Humans
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Middle Aged
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Prevalence
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Renal Insufficiency, Chronic/epidemiology*
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Risk Factors