We tried to implant the ultra-fast polymer optical fiber chemical oxygen sensor (POFCOS) into arterial blood vessel,connect with photoelectric conversion measurement system to record the continuous dynamic rapid changes of arterial PO(PaO) in whole living animals. It should be the experimental evidence for the new theory of holistic integrative physiology and medicine(HIPM) forexplain the mechanism of respiratory control and regulation in whole circusof respiration-circulation-metabolism. ①Fabrication of ultrafast POFCOS, calibration and its measuring system: The distal part of 2 m optical fiber was heated and pulled until it became a tapered tip.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
January 2021
On the basis of preliminarily verifying the use of ultra-fast reaction polymer matrix optical fiber oxygen sensor and its measuring system to record the continuous and dynamic changes of carotid artery oxygen partial pressure (PaO), in order to analyze and discuss the influence of lung ventilation on the continuous and dynamic changes of PaO, we designed a whole animal experimental study in vivo. Four hybrid goats were selected, and the skin was cut and exposed directly under general anesthesia and tracheal intubation. The oxygen sensor, connected with the measuring system, was inserted directly into the left carotid artery to continuously record the dynamic changes of PaO.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
January 2021
The objective is to find the characteristics of arterial blood sample waveform in different respiration models. Six post-operative patients with normal heart function and negative Allen test, were 4 male and 2 female, (59.00±16.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
January 2021
The arterial blood with the oscillatory information comes from the right heart system after gas exchanging in the lung. However, the evidence of the waveform of venous ABG is lack. The objectives of this article are to compare the different information between arterial and venous beat-by-beat blood sample at the same time.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
January 2021
In order to explore the mechanism of neonatal spontaneous breathing, the difference of oxygen and carbon dioxide between umbilical cord arteries and veins before the start of spontaneous breathing after birth has been analyzed among people. In this part, the related information is analyzed individually. After all fetal parents signed the informed consent before birth, and before the newborn was born and did not breathe, the umbilical cord was exposed as quickly as possible, and the heparinized arterial indwelling needle was inserted into the umbilical artery and umbilical vein in the direction of newborn and placenta, and then blood was taken continuously.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
January 2021
The fetus has no actual respiration, and the newborn begins to breathe after birth. We assume that the first breath dominantly generated by hypoxia. In this study, the changes and lowest limit of blood oxygen partial pressureof umbilical artery (PuaO) after chemoreceptor were analyzed to explore the mechanism of neonatal spontaneous breathing.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
March 2021
The cardiopulmonary function of patients with chronic heart failure (CHF) was severely limited, but the holistic integrative exercise pathophysiology is still unclear. After signed the consent form, Eighty three patients with severe CHF from October 2016 to October 2017 in Fuwai Hospital were performed Ramp incremental loading program CardioPulmonary Exercise Testing (CPET), and 12 normal subjects served as control. CPET were performed according to standard of Harbor-UCLA MC and the circulatory, respiratory and metabolic parameters during CPET were measured and analyzed.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
March 2021
To verify that the cardiopulmonary exercise testing (CPET) performed by clinical subjects is the maximum extreme exercise, we designed The Max test(Max)during clinical CPET. We used Max to verify the accuracy of the quantitative CPET evaluation result, and whether it is feasible and safe to use the specific value of a certain index as the standard for stopping CPET. Two hundred and sixteen cases from Fuwai Hospital were selected during June 2017 to January 2019,including 41 healthy person(control group) and 175with cardiovascular diseases(patient group),The patients had a CPET peak RER ≤ 1.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
March 2021
To observe the effect of healthy volunteers different work rate increasing rate cardiopulmonary exercise testing (CPET) on the sub-peak parameters . Twelve healthy volunteers were randomly assigned to a moderate (30 W/min), a relatively low (10 W/min) and relatively high (60 W/min) three different work rate increasing rate CPET on different working days in a week. The core indicators related to CPET sub-peak exercise of 12 volunteers were compared according to standard Methods: anaerobic threshold (AT), oxygen uptake per unit power (ΔVO/ΔWR), oxygen uptake eficiency plateau,(OUEP), the lowest average of 90 s of carbon dioxide ventilation equivalent (Lowest VE/ VCO), the slope of carbon dioxide ventilation equivalent (VE/ VCO Slope) and intercept and anaerobic threshold oxygen uptake ventilation efficiency value (VO/ VE@AT) and the anaerobic threshold carbon dioxide ventilation equivalent value (VE/ VCO@AT).
View Article and Find Full Text PDFTo observe the effect of healthy volunteers different work rate increasing rate cardiopulmonary exercise test (CPET) on the peak exercise core indicators and the changes of respiratory exchange rate (RER) during exercise, to explore the effect of different work rate increasing rate on CPET peak exercise related indicators. Twelve healthy volunteers were randomly assigned to a moderate (30 W/min), a relatively low (10 W/min) and relatively high (60 W/min) three different work rate increasing rate CPET on different working days in a week. The main peak exercise core indicators of CPET data: VO, VCO, work rate (WR), breathe frequency(Bf), tidal volume (VT), ventilation (VE), heart rate (HR), blood pressure (BP), Oxygen pulse(OP), exercise time and RER for each period of CPET were analyzed using standard methods.
View Article and Find Full Text PDFZhonghua Zhong Liu Za Zhi
February 2008
Objective: To investigate the specific anti-breast cancer immune response induced by dendritic cells (DC) loaded with trastuzumab and apoptotic Her-2+ breast cancer cells.
Methods: DCs were generated from healthy peripheral blood mononuclear cells (PBMCs) in the presence of recombinant cytokines GM-CSF, IL-4 and TNF-alpha. Mature DCs were harvested after 7 days' co-culture of PBMCs and trastuzumab-treated apoptotic SKBr3 cells.
Beijing Da Xue Xue Bao Yi Xue Ban
April 2005
Objective: To detect the rate of Mycoplasma infection in cell lines and further determine its types.
Methods: We performed nest PCR amplification of Mycoplasma's conserved regions (16S-23S) and sequenced the spacer with different length between conserved regions.
Results: Within the tested 22 cell lines, 17 (77.
Zhongguo Shi Yan Xue Ye Xue Za Zhi
June 2002
In order to investigate whether cytokine-induced killer (CIK) cells can induce apoptosis of bcr-abl(+) K562 cells, apoptosis of K562 cells and CEM cells induced by CIK cells, etoposide or camptothecin was detected with flow cytometry DNA assay. RT-PCR showed that K562 cells expressed the bcr-abl fusion gene, K 562 cells, K562 cells/etoposide or K562 cells/camptothecin groups showed no sub-G(1) peak. K562 cells/CIK cells group showed sub-G(1) peak (38.
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