生物物理学期刊(英文)最新文献_第7页

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

生物物理学期刊(英文) Pub Date : 2019-01-17 DOI: 10.4236/OJBIPHY.2019.91005

Lilia Narinyan, S. Ayrapetyan

{"title":"Age-Dependent Comparative Study of 4 Hz and 8 Hz EMF Exposure on Heart Muscle Tissue Hydration of Rats","authors":"Lilia Narinyan, S. Ayrapetyan","doi":"10.4236/OJBIPHY.2019.91005","DOIUrl":"https://doi.org/10.4236/OJBIPHY.2019.91005","url":null,"abstract":"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.","PeriodicalId":59528,"journal":{"name":"生物物理学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45345134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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

生物物理学期刊(英文) Pub Date : 2019-01-04 DOI: 10.4236/ojbiphy.2019.91004

G. Szigeti, A. Szász

{"title":"Fluctuations Hypothesize the New Explanation of Meridians in Living Systems","authors":"G. Szigeti, A. Szász","doi":"10.4236/ojbiphy.2019.91004","DOIUrl":"https://doi.org/10.4236/ojbiphy.2019.91004","url":null,"abstract":"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.","PeriodicalId":59528,"journal":{"name":"生物物理学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46195037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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

生物物理学期刊(英文) Pub Date : 2019-01-01 DOI: 10.4236/ojbiphy.2019.91003

David T. Heider, J. van Hemmen

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?

生物物理学期刊(英文) Pub Date : 2019-01-01 DOI: 10.4236/ojbiphy.2019.91001

A. Atanasov

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

生物物理学期刊(英文) Pub Date : 2018-11-07 DOI: 10.4236/OJBIPHY.2019.91002

S. Kinoshita, H. Yamada

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

生物物理学期刊(英文) Pub Date : 2018-09-13 DOI: 10.4236/OJBIPHY.2018.84014

Daniel Maitethia Memeu, Merenga Abdallah Sarroney, C. Maina

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

生物物理学期刊(英文) Pub Date : 2018-09-13 DOI: 10.4236/ojbiphy.2018.84015

Stephen Talba Diyong, E. Tizhe, Stephen D. Songden

{"title":"Histomorphological Changes in the Skin and Eye Induced by Sub-Chronic Exposure of Wistar Rats to 3G Cell Phone Radiation","authors":"Stephen Talba Diyong, E. Tizhe, Stephen D. Songden","doi":"10.4236/ojbiphy.2018.84015","DOIUrl":"https://doi.org/10.4236/ojbiphy.2018.84015","url":null,"abstract":"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.","PeriodicalId":59528,"journal":{"name":"生物物理学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48772390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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

生物物理学期刊(英文) 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

{"title":"Specific Radius Change of Quantum Dot inside the Lipid Bilayer by Charge Effect of Lipid Head-Group","authors":"S. Sung, H. Pak, J. Kwak, Sang Weon Lee, Young Ha Kim, B. Hur, Seong Jin Jin, G. Kim","doi":"10.4236/OJBIPHY.2018.83012","DOIUrl":"https://doi.org/10.4236/OJBIPHY.2018.83012","url":null,"abstract":"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.","PeriodicalId":59528,"journal":{"name":"生物物理学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43533377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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

生物物理学期刊(英文) Pub Date : 2018-05-29 DOI: 10.4236/OJBIPHY.2018.83010

D. Meijer, Hans J. H. Geesink

{"title":"Guided Folding of Life's Proteins in Integrate Cells with Holographic Memory and GM-Biophysical Steering","authors":"D. Meijer, Hans J. H. Geesink","doi":"10.4236/OJBIPHY.2018.83010","DOIUrl":"https://doi.org/10.4236/OJBIPHY.2018.83010","url":null,"abstract":"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.","PeriodicalId":59528,"journal":{"name":"生物物理学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45649937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Live C. elegans Diffraction at a Single Point 活秀丽隐杆线虫单点衍射

生物物理学期刊(英文) Pub Date : 2018-05-29 DOI: 10.4236/ojbiphy.2018.83011

J. Magnes, Cheris Congo, Miranda Hulsey-Vincent, H. Hastings, K. Raley-Susman

引用次数: 1