1.Clinical diagnosis and microsurgery of 12 patients with parasellar cavernous hemangiomas
Zhen LI ; Yunhui LIU ; Tianda FENG ; Hao TENG
Chinese Journal of Postgraduates of Medicine 2013;(2):18-20
Objective To investigate the clinical features and microsurgical outcomes of patients with parasellar cavernous hemangiomas.Methods The clinical data and prognosis of 12 patients with parasellar cavemous hemangiomas treated with microsurgery were retrospectively analyzed.Magnetic resonance imaging showed that cavernous hemangiomas appeared slight hypointensity on T1WI,hyperintense on T2WI,and significant contrast on enhancing.Results Total resection and sub-total resection was achieved in 9 and 3 patients.No death occurred postoperatively.After operation,all patients were released from intracranial hypertension.In 6 patients who had visual disorder,5 patients improved and 1 patient had no change.In 5 patients who had eyeball motor disorder,3 patients improved and 2 patients had no change.In 4 patients who had pituitary gland dyshormonism,2 patients improved and 2 patients had no change.At postoperative early stage,diabetes insipidus and serum electrolyte disorder occurred in 3 patients,2 patients developed oculomotor paralysis.Patients were followed up (30.51 + 2.57) months.Three patients recovered from diabetes insipidus and serum electrolyte disorder,and 1 patient recovered from oculomotor paralysis.No patient suffered tumor recurrence or regrowth.Conclusions The correct diagnosis of parasellar cavernous hemangiomas can be achieved according to the preoperative MRI.Microsurgery is the first-line therapy for parasellar cavernous hemangiomas.
2.Establishment of fibroblast cell line and its biological characteristics in Matou goat.
Tianda LI ; Chousheng LIU ; Zhigang WANG ; Liping ZHANG ; Xiuzhu SUN ; Junjin ZHAO ; Fei MENG ; Guihe LUO ; Jinqing ZHU
Chinese Journal of Biotechnology 2008;24(12):2056-2060
Taking Matou goat ear margin as the study material, we succeeded in established a fibroblast cell line by the method of explant culture directly. Observations on morphology, dynamic growth, determination of viability, analysis of karyotype, test of microorganism and other characteristics were detected. Results showed: Population Doubling Time (PDT) of cells was approximately 36 h; Cell viability was 96.7% after thawing; The status of cell After passage was constant; Analysis of chromosomal karyotyps indicated that diploid (2n=60) account for 98% in the cell line. Every index in the cell line met all the standard quality controls of ATCC in USA. The established of Matou goat ear fibroblast cell line has not only important genetic resources preserved at the cell level, but also valuable material for genome, postgenome and somatic cell nuclear transfer research.
Animals
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Cell Line
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Cell Movement
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Cell Survival
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China
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Diploidy
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Ear, External
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cytology
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Fibroblasts
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cytology
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Goats
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Karyotyping
3. Effects of puerarin on maternal gestational diabetes mellitus rats and fetal growth
Kun QIAN ; Yi-Yi SONG ; Li CAO ; Kun QIAN
Chinese Pharmacological Bulletin 2024;40(3):469-475
Aim To observe the effects of oral puerarin (Pue) on the maternal gestational diabetes mellitus (GDM) rats and its fetal growth and development, so as to provide references for the application of Pue in the treatment of GDM. Methods The GDM rat model was established by injecting streptozotocin (STZ) into the tail vein of pregnant female rats, and the rats were treated with Pue orally for 12 days; the body weight and abortion of pregnant rats were recorded. The fasting blood glucose of pregnant rats was detected before and at the end of the treatment, and the glucose tolerance was tested on the 5th and 10th days after the administration of the drug. The cesarean sections were carried out on the 20th day of pregnancy. The blood glucose content of the fetal rats was detected, and the state of development was observed. The body weight and length were measured, as well as the placenta and the important organs weight, and the indexes of the organs were calculated. Results Compared with the model group, Pue could significantly reduce the fasting blood glucose of GDM pregnant rats and fetal rats, improve the glucose tolerance of pregnant rats, effectively alleviate the excessive weight gain of pregnant rats and overweight of fetal rats caused by GDM, and reduce the abortion rate; it could also reverse the decrease in the indexes of the organs of brain, heart, and liver, and the increase in the indexes of organs of kidney in fetal rats caused by GDM. Conclusions Pue can relieve the maternal and the fetal hyperglycemia in GDM, reduce the rate of miscarriage, reduce the incidence of macrosomia, and promote the development of vital fetal organs.
4.Construction and performance analysis of a microbial electrochemical sensor for monitoring heavy metals in water environment.
Xiaoxiao LIU ; Fei YE ; Chuanchao WEI ; Mingjie ZHAO ; Yongtian LI
Chinese Journal of Biotechnology 2022;38(5):1903-1914
A microbial fuel cell (MFC)-based microbial electrochemical sensor was developed for real-time on-line monitoring of heavy metals in water environment. The microbial electrochemical sensor was constructed with staggered flow distribution method to optimize the parameters such as external resistance value and external circulation rate. The inhibition of concentration of simulated heavy metal wastewater on voltage under optimal parameters was analyzed. The results showed that the best performance of MFC electrochemical sensor was achieved when the external resistance value was 130 Ω and the external circulation rate was 1.0 mL/min. In this case, the microbial electrochemical sensors were responsive to 1-10 mg/L Cu2+, 0.25-1.25 mg/L Cd2+, 0.25-1.25 mg/L Cr6+ and 0.25-1.00 mg/L Hg2+ within 60 minutes. The maximum rejection rates of the output voltage were 92.95%, 73.11%, 82.76% and 75.80%, respectively, and the linear correlation coefficients were all greater than 0.95. In addition, the microbial electrochemical sensor showed a good biological reproducibility. The good performance for detecting heavy metals by the newly developed microbial electrochemical sensor may facilitate the real-time on-line monitoring of heavy metals in water environment.
Bioelectric Energy Sources
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Electrodes
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Metals, Heavy/analysis*
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Reproducibility of Results
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Waste Water
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Water