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Age-Dependent Comparative Study of 4 Hz and 8 Hz EMF Exposure on Heart Muscle Tissue Hydration of Rats 4hz和8hz电磁场暴露对大鼠心肌组织水化作用的年龄依赖性比较研究
Pub Date : 2019-01-17 DOI: 10.4236/OJBIPHY.2019.91005
Lilia Narinyan, S. Ayrapetyan
Previously we have shown that 4 Hz and 8 Hz EMF exposures have depressing effect on the thermodynamic activity of water, which decreases peroxide formation. It has also been shown that 4 Hz EMF-treated physiological solution modulates the growth and development of microbes and heart muscle contractility, but 8 Hz EMF has pronounced inhibitory effect on bacterial growth and development. Therefore, in order to elucidate the possible mechanism of 4 Hz and 8 Hz EMF effects on heart muscle function, in the present work the effects of 4 Hz and 8 Hz EMF exposures on heart muscle tissue hydration, the sensitivity of 4 Hz and 8 Hz EMF-induced tissue hydration to 10−4 M ouabain (Na+/K+ pump inhibition) and 10−9 M ouabain (activation of intracellular signaling system) as well as the effects of 4 Hz and 8 Hz EMF exposures on the number of Na+/K+ pump units in the membrane of both young and old rats have been studied. The obtained data allow us to suggest that 8 Hz EMF exposure has more pronounced age-dependent modulation effect on tissue hydration of heart muscle than 4 Hz EMF and this effect is sensitive to Na+/K+ pump activity and intracellular signaling system.
之前我们已经表明,4 Hz和8 Hz的EMF暴露对水的热力学活性具有抑制作用,从而减少过氧化物的形成。研究还表明,4Hz EMF处理的生理溶液调节微生物的生长发育和心肌收缩力,但8Hz EMF对细菌的生长发育具有显著的抑制作用。因此,为了阐明4Hz和8Hz EMF对心肌功能影响的可能机制,在本工作中,4Hz和5Hz EMF暴露对心肌组织水合作用的影响,研究了4 Hz和8 Hz EMF诱导的组织水合作用对10−4 M哇巴因(Na+/K+泵抑制)和10−9 M哇巴恩(细胞内信号系统激活)的敏感性,以及4 Hz和8Hz EMF暴露对年轻和老年大鼠膜中Na+/K+泵单元数目的影响。所获得的数据使我们能够表明,与4Hz EMF相比,8Hz EMF暴露对心肌组织水合作用具有更明显的年龄依赖性调节作用,并且这种作用对Na+/K+泵活性和细胞内信号系统敏感。
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引用次数: 1
Fluctuations Hypothesize the New Explanation of Meridians in Living Systems 波动假设生命系统中经络的新解释
Pub Date : 2019-01-04 DOI: 10.4236/ojbiphy.2019.91004
G. Szigeti, A. Szász
Biosystems are complex. Their physiology is well-controlled with various negative feedback signals and processes, it describes by opposite interfering effects which are characterized in the Eastern philosophy by Yin-Yang (Y-Y) pairs. Y-Y pairs could be described by the promoter-suppressor pairs in a wide range of physiologic signals creating the homeostasis of the complex system. This type of control appears as fluctuations from the average (mean) value of the signal. The mean carries an ineluctable fluctuation (called pink-noise or 1/f noise). All signals in homeostasis have equal entropy (SE = 1.8), which is the character of the complex equilibrium. The various controlling opposite signals (Y-Y) have different time-scales which change by aging. The processes with smaller time-scale are degraded by aging, but the pink-noise ensures that the deviations of the signals of the healthy homeostatic system remain constant. Meridians are connected to the general transport systems that combined the material and the information transport with the considerable transport networks, like blood, lymph, nerve, cell-junctions, mesenchymal “ground substance” cytoskeletons. The meridians in this meaning only virtual line averaged from multiple realized paths to connect two acupuncture points by the material, energy and information transport processes. The meridian network is designed by various coupling points (acupoints), which could be perturbed by actuating stimulus. Our objective is to describe the meridian system from complexity point of view.
生物系统很复杂。他们的生理受到各种负反馈信号和过程的良好控制,它被描述为相反的干扰效应,在东方哲学中被描述为阴阳(Y-Y)对。在广泛的生理信号中,Y-Y对可以通过启动子-抑制子对来描述,从而创造复杂系统的内稳态。这种类型的控制表现为信号平均值的波动。平均值带有不可避免的波动(称为粉红噪声或1/f噪声)。所有处于稳态的信号都具有相等的熵(SE = 1.8),这是复杂平衡的特征。各种控制反向信号(Y-Y)具有不同的时间尺度,这些时间尺度随年龄的增长而变化。时间尺度较小的过程由于老化而退化,但粉红噪声保证了健康的稳态系统信号的偏差保持不变。经络连接到一般的运输系统,将物质和信息的运输与相当大的运输网络相结合,如血液、淋巴、神经、细胞连接、间充质“基质”细胞骨架。这种意义上的经络只是从多个实现路径平均的虚线,通过物质、能量和信息的传递过程来连接两个穴位。经络是由各种耦合点(腧穴)组成的,这些耦合点会受到驱动刺激的扰动。我们的目的是从复杂性的角度来描述经络系统。
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引用次数: 1
Effective-Spring Model of Tympanic Response in Archosaurs 始祖龙鼓室反应的有效-弹簧模型
Pub Date : 2019-01-01 DOI: 10.4236/ojbiphy.2019.91003
David T. Heider, J. van Hemmen
Whereas for smaller animals the eardrums are well-characterized as excitable membranes or drums, some animals such as several archosaurs feature, as a first approximation, a rather stiff elastic shell supported by an elastic ring. Mathematically, the theory of plates and shells is applicable but its governing equations overly complicate the modeling. Here the notion of tympanic structure is introduced as a generalization of “ordinary” tympanic membranes so as to account for sound perception as it occurs in archosaurs, such as birds and crocodilians. A mathematical model for the tympanic structure in many archosaurs called two-spring model implements this notion. The model is exactly soluble and solutions are presented in closed form and as a series expansion. Special emphasis is put onto offering an easy-to-apply model for describing experiments and performing numerical studies. The analytic treatment is supplemented by a discussion of the applicability of the two-spring model in auditory research. An elasticity-theoretic perspective of the two-spring model is given in the Appendix.
而对于较小的动物来说,耳膜的特征是可兴奋的膜或鼓,一些动物,如几种始龙,作为第一个近似,具有相当坚硬的弹性壳,由弹性环支撑。在数学上,板壳理论是适用的,但其控制方程使建模过于复杂。在这里,鼓膜结构的概念是作为“普通”鼓膜的概括而引入的,以便解释在诸如鸟类和鳄鱼等始祖恐龙中发生的声音感知。许多祖龙鼓室结构的数学模型称为双弹簧模型实现了这一概念。该模型是完全可溶的,解以封闭形式和级数展开式表示。特别强调的是提供一个易于应用的模型来描述实验和进行数值研究。通过讨论双弹簧模型在听觉研究中的适用性,补充了分析处理。在附录中给出了双弹簧模型的弹性理论视角。
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引用次数: 1
Nasal Cycle Dilemma: Nasal Cycle Is Associated to Brain Wake/REM States or Is Associated to Conscious State in Them? 鼻周期困境:鼻周期与大脑清醒/快速眼动状态有关还是与意识状态有关?
Pub Date : 2019-01-01 DOI: 10.4236/ojbiphy.2019.91001
A. Atanasov
Experimental and theoretical arguments have been described in favor of the hypothesis that the nasal cycle reversals of the nostril’s airflow occurs only in the consciousness states of the brain (during awake/wake state, REM state and during dreams in St.1, 2 of the non-REM sleep). This finding gives possibility to use nasal cycle as “marker for consciousness states”. An idea for clinical application of the hypothesis is proposed.
实验和理论论证都支持这样的假设,即鼻腔气流的鼻腔循环逆转只发生在大脑的意识状态(在清醒/清醒状态、快速眼动状态和非快速眼动睡眠St.1、2的做梦期间)。这一发现提供了使用鼻循环作为“意识状态标记”的可能性。并对该假说的临床应用提出了设想。
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引用次数: 3
Role of Self-Loop in Cell-Cycle Network of Budding Yeast 自环在出芽酵母细胞周期网络中的作用
Pub Date : 2018-11-07 DOI: 10.4236/OJBIPHY.2019.91002
S. Kinoshita, H. Yamada
Study of network dynamics is very active area in biological and social sciences. However, the relationship between the network structure and the attractors of the dynamics has not been fully understood yet. In this study, we numerically investigated the role of degenerate self-loops on the attractors and its basin size using the budding yeast cell-cycle network model. In the network, all self-loops negatively suppress the node (self-inhibition loops) and the attractors are only fixed points, i.e. point attractors. It is found that there is a simple division rule of the state space by removing the self-loops when the attractors consist only of point attractors. The point attractor with largest basin size is robust against the change of the self-inhibition loop. Furthermore, some limit cycles of period 2 appear as new attractor when a self-activation loop is added to the original network. It is also shown that even in that case, the point attractor with largest basin size is robust.
网络动力学是生物科学和社会科学中非常活跃的研究领域。然而,网络结构与动力学吸引子之间的关系尚不完全清楚。在本研究中,我们利用出芽酵母细胞周期网络模型,数值研究了简并自环对吸引子及其盆大小的作用。在网络中,所有的自环都负抑制节点(自抑制环),吸引子只有不动点,即点吸引子。当吸引子仅由点吸引子组成时,通过去除自环,发现存在一个简单的状态空间分割规则。池大小最大的点吸引子对自抑制回路的变化具有较强的鲁棒性。此外,在原有网络中加入自激活环时,出现了周期为2的极限环作为新的吸引子。结果还表明,即使在这种情况下,具有最大盆大小的点吸引子也是鲁棒的。
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引用次数: 4
Photo-Thermal Induced Optical Scattering Modulation Sensor for Malaria Diagnosis 用于疟疾诊断的光热诱导光散射调制传感器
Pub Date : 2018-09-13 DOI: 10.4236/OJBIPHY.2018.84014
Daniel Maitethia Memeu, Merenga Abdallah Sarroney, C. Maina
Malaria is one of the leading killer diseases in sub-Saharan Africa. Although the disease is curable, early and accurate diagnosis is key to effective therapy. Existing malaria diagnostic techniques have low detection accuracy especially when the parasite load in the blood is low. In this paper, we report on a simple photo-thermal based technique for detection of the Plasmodium parasites’ biomarker (hemozoin) in blood smear samples. The technique has demonstrated 100% Plasmodium detection sensitivity and specificity from the ten blood smear test samples used.
疟疾是撒哈拉以南非洲地区的主要致命疾病之一。虽然这种疾病是可以治愈的,但早期和准确的诊断是有效治疗的关键。现有的疟疾诊断技术检测精度较低,特别是当血液中寄生虫载量较低时。本文报道了一种简单的光热法检测血液涂片样品中疟原虫生物标志物(血色素)的方法。该技术对所用的10个血液涂片检测样本显示出100%的疟原虫检测灵敏度和特异性。
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引用次数: 1
Histomorphological Changes in the Skin and Eye Induced by Sub-Chronic Exposure of Wistar Rats to 3G Cell Phone Radiation 3G手机亚慢性辐射对Wistar大鼠皮肤和眼睛组织形态学的影响
Pub Date : 2018-09-13 DOI: 10.4236/ojbiphy.2018.84015
Stephen Talba Diyong, E. Tizhe, Stephen D. Songden
The effects of electromagnetic radiation produced by a 3G cell phone (third-generation) on skin tissues and eyes were investigated in terms of histomorphological parameters. A total of 26 Wistar rats (2 weeks-old, each weighing 40 g at the time of experiment) were used. They were maintained under a control room with water and food continuously available. The animals were divided into two experimental groups: Group A (Exposed) and Group B (Control), each with 13 Wistar Rats kept inside a plexi cage. Group A was exposed to a 3G cell phone radiation while Group B the control group, was not. All animals were generally anesthetized with Ketamine injection and then decapitated. The skin tissue was excised from the dorsal area and eyes samples were taken from all the rats by enucleating of the eye balls, fixed in 10% neutral buffered formalin for a minimum of 72 hours before processing through a graded alcohol and xylene was used as a clearing agent, embedded in paraffin blocks. Tissues were sectioned at 5μm thick and routinely stained with hematoxylin/eosin. Mounted slides were examined and photographed using a light microscope. Mild to severe orthokeratotic parakeratosis was observed in the skin while eye revealed loss of striation in the sclera with necrosis of the layers of rods and cones in the retina of the exposed group. We conclude that sub chronic exposure to 3G cell phone radiation impaired the protective ability of the skin and also impaired accommodation.
从组织形态学的角度研究了3G手机产生的电磁辐射对皮肤组织和眼睛的影响。选用2周龄Wistar大鼠26只,实验时每只体重40 g。他们被关在一个控制室里,有水和食物持续供应。实验动物分为两个实验组:A组(暴露组)和B组(对照组),每组13只Wistar大鼠饲养于plexi笼中。A组暴露在3G手机辐射下,而B组作为对照组则没有。所有动物用氯胺酮注射全身麻醉后斩首。从背部切除皮肤组织,所有大鼠的眼睛样本通过眼球去核,在10%中性缓冲福尔马林中固定至少72小时,然后通过分级酒精处理,二甲苯作为清除剂,包埋在石蜡块中。取5μm厚组织切片,苏木精/伊红常规染色。用光学显微镜检查和拍摄载玻片。暴露组皮肤出现轻度至重度角化不全,眼部巩膜条纹消失,视网膜杆状和锥体层坏死。我们的结论是,亚慢性暴露于3G手机辐射会损害皮肤的保护能力,也会损害适应性。
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引用次数: 0
Specific Radius Change of Quantum Dot inside the Lipid Bilayer by Charge Effect of Lipid Head-Group 脂质头群电荷效应引起脂质双层内量子点比半径的变化
Pub Date : 2018-05-29 DOI: 10.4236/OJBIPHY.2018.83012
S. Sung, H. Pak, J. Kwak, Sang Weon Lee, Young Ha Kim, B. Hur, Seong Jin Jin, G. Kim
We studied the quantum dot-liposome complex (QLC), which is the giant unilamellar vesicle with quantum dots (QDs) incorporated in its lipid bilayer. A spin coating method in conjunction with the electroformation technique yielded vesicles with highly homogeneous unilamellar structure. We observed QD size dependence of the QLC formation: QLCs form with blue, green and yellow-emission QD (core radius ~1.05 nm, 1.25 nm and 1.65 nm) but not with red-emission QD (core radius ~2.5 nm). In order to explain this size dependence, we made a simple model explaining the QD size effect on QLC formation in terms of the molecular packing parameter and the lipid conformational change. This model predicts that QDs below a certain critical size (radius ≈ 1.8 nm) can stably reside in a lipid bilayer of 4 - 5 nm in thickness for Egg-PC lipids. This is consistent with our previous experimental results. In the case of red-emission QD, QD-aggregations are only observed on the fluorescent microscopy instead of QLC. We expected that the reduction of packing parameter (P) would lead to the change of specific QD radius. This prediction could be verified by our experimental observation of the shift of the specific QD size by mixing DOPG.
我们研究了量子点-脂质体复合物(QLC),它是一种巨大的单层囊泡,其脂质双层中含有量子点(QDs)。自旋镀膜方法结合电形成技术产生了具有高度均匀的单层结构的囊泡。我们观察到QD大小对QLC形成的依赖性:QLC形成有蓝色、绿色和黄色发射的QD(核半径~1.05 nm、1.25 nm和1.65 nm),而不与红色发射的QD(核半径~2.5 nm)形成。为了解释这种尺寸依赖性,我们建立了一个简单的模型,从分子堆积参数和脂质构象变化的角度来解释QD尺寸对QLC形成的影响。该模型预测,小于某一临界尺寸(半径≈1.8 nm)的量子点可以稳定地驻留在厚度为4 - 5nm的蛋- pc脂质双分子层中。这与我们之前的实验结果是一致的。在红发射量子点的情况下,量子点聚集只在荧光显微镜上观察到,而不是在量子点色谱上观察到。我们预期填料参数(P)的减小会导致比量子点半径的变化。这一预测可以通过我们的实验观察来验证,通过混合DOPG,我们可以观察到特定量子点尺寸的变化。
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引用次数: 2
Guided Folding of Life's Proteins in Integrate Cells with Holographic Memory and GM-Biophysical Steering 生命蛋白质在整合细胞中与全息记忆和转基因生物物理转向的引导折叠
Pub Date : 2018-05-29 DOI: 10.4236/OJBIPHY.2018.83010
D. Meijer, Hans J. H. Geesink
The current geometric and thermodynamic approaches in protein folding studies do not provide a definite solution to understanding mechanisms of folding of biological proteins. A major problem is that the protein is first synthesized as a linear molecule that subsequently must reach its native configuration in an extremely short time. Hydrophobicity-hydrophilicity models and random search mechanism cannot explain folding to the 3-D functional form in less than 1 second, as it occurs in the intact cell. We propose an integral approach, based on the embedding of proteins in the whole cellular context under the postulate: a life protein is never alone. In this concept the protein molecule is influenced by various long and short distance force fields of nature such as coherent electromagnetic waves and zero-point energy. In particular, the role of solitons is reviewed in relation to a novel GM-scale biophysical principle, revealed by us. This recent finding of a set of discrete EM frequency bands, that either promote or endanger life conditions, could be a key in further studies directed at the morphogenetic aspects of protein folding in a biological evolutionary context. In addition, an alternative hypothesis is presented in which each individual cell may store integral 3-D information holographically at the virtual border of a 4-D hypersphere that surrounds each living cell, providing a field receptive memory structure that is instrumental in guiding the folding process towards coherently oscillating protein networks that are crucial for cell survival.
目前蛋白质折叠研究中的几何和热力学方法并没有为理解生物蛋白质折叠的机制提供确切的解决方案。一个主要问题是,蛋白质首先是作为线性分子合成的,随后必须在极短的时间内达到其天然构型。亲水性亲水性模型和随机搜索机制不能解释在1秒内折叠成三维功能形式,因为它发生在完整的细胞中。我们提出了一种完整的方法,基于蛋白质在整个细胞环境中的嵌入,假设:生命蛋白质从来都不是唯一的。在这个概念中,蛋白质分子受到自然的各种长距离和短距离力场的影响,如相干电磁波和零点能量。特别是,孤立子的作用与我们揭示的一种新的GM尺度的生物物理原理有关。最近发现的一组离散EM频带可能会促进或危及生命条件,这可能是在生物进化背景下进一步研究蛋白质折叠的形态发生方面的关键。此外,提出了另一种假设,其中每个单独的细胞可以在围绕每个活细胞的4-D超球体的虚拟边界全息存储完整的三维信息,提供场感受性记忆结构,该结构有助于引导折叠过程朝着对细胞生存至关重要的相干振荡蛋白质网络。
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引用次数: 13
Live C. elegans Diffraction at a Single Point 活秀丽隐杆线虫单点衍射
Pub Date : 2018-05-29 DOI: 10.4236/ojbiphy.2018.83011
J. Magnes, Cheris Congo, Miranda Hulsey-Vincent, H. Hastings, K. Raley-Susman
Using coherent light, we analyze the temporal diffraction at a single point from real-time living C. elegans locomotion in three-dimensional space. We describe the frequency spectrum of single swimming nematodes in an optical cuvette at a single sampling point in the far-field diffraction pattern. An analytical expression of the double slit is used to model the frequency spectra of nematodes as oscillating segments. The frequency spectrum in the diffraction pattern expands discretely and linearly as a multiple of the fundamental frequency with increasing distance from the central maximum. The frequency spectrum of a worm at a single point in the frequency spectrum contains all the frequencies involved in the locomotion and is used to characterize and compare nematodes. The occurrence of resonant frequencies in the dynamic diffraction pattern increases with the distance from the central maximum. The regular spacing of the resonant frequencies is used to identify characteristic swimming frequencies.
利用相干光,我们分析了秀丽隐杆线虫在三维空间中实时运动的单点时间衍射。我们描述了远场衍射图中单个采样点的光学比色皿中单个游动线虫的频谱。使用双狭缝的解析表达式来模拟线虫作为振荡段的频谱。衍射图案中的频谱随着与中心最大值的距离增加而离散地线性扩展为基频的倍数。蠕虫在频谱中单个点的频谱包含运动中涉及的所有频率,用于表征和比较线虫。动态衍射图案中谐振频率的出现随着距中心最大值的距离而增加。谐振频率的规则间隔用于识别特征游动频率。
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引用次数: 1
期刊
生物物理学期刊(英文)
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