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Superoxide dismutase + (Mammalian '''superoxide dismutase''' (SOD) … Mammalian '''superoxide dismutase''' (SOD) exists in three forms, of which the Mn-SOD occurs in mitochondria (mtSOD, SOD2; 93 kD homotetramer) and many bacteria, in contrast to the Cu-Zn forms of SOD (cytosolic SOD1, extracellular SOD3 anchored to the extracellular matrix and cell surface). [[Superoxide]] anion (O2•-) is a major [[reactive oxygen species]] (ROS) which is dismutated by SOD to [[oxygen]] and [[hydrogen peroxide | H2O2]].hydrogen peroxide | H2O2]].)
Manuscript template for MitoFit Preprints + (Manuscripts template for [[MitoFit Preprints]] and [[Bioenergetics Communications]].)
Attached cells + (Many cell types are grown in culture as '''attached cells''', such as endothelial or neuronal cells in a monolayer.)
Metabolic control analysis + (Metabolic control analysis is a science fo … Metabolic control analysis is a science focused on the understanding of metabolic regulation and control. In metabolism, the reductionist approach has allowed us to know which enzymes, metabolites and genes are involved in a metabolic pathway but this is not enough to understand how it is controlled, resulting in poor results from attempts to increase the rates of selected metabolic pathways. The control of the metabolism is the capacity to alter the metabolic state in response to an external signal. With this definition in mind, we will assess the metabolic control in terms of the strength of any of the responses to the external factor without making the assumption about the function or purpose of that response[1].====Bibliography:====::1. David Fell. Frontiers in metabolism 2. Understanding the control of metabolism. Portland Press. 1997.ntrol of metabolism. Portland Press. 1997.)
MiPNet-Publication + (MiPNet is the abbreviation for the OROBOROS Journal '''Mitochondrial Physiology Network''', including chapters of the [[O2k-Manual]], [[O2k-Procedures]], [[O2k-Workshops]], and other announcements, starting with MiPNet 01 in 1996. See also »[[MiPNet]].)
Communication - mitochondria and the patient + (Mitochondria and the patient: communication between patients, medical professionals, scientists, and the public)
Substrate-uncoupler-inhibitor titration + (Mitochondrial '''Substrate-uncoupler-inhib … Mitochondrial '''Substrate-uncoupler-inhibitor titration''' ('''SUIT''') [[MitoPedia: SUIT |protocols]] are used with [[mitochondrial preparations]] to study respiratory control in a sequence of coupling and substrates states induced by multiple titrations within a single experimental [[assay]].[[assay]].)
Hydrogen ion pump + (Mitochondrial '''hydrogen ion pumps''' — f … Mitochondrial '''hydrogen ion pumps''' — frequently referred to as "proton pumps" — are large enzyme complexes (CI, CIII, CIV, ATP synthase) spanning the mt-inner membrane mtIM, partially encoded by mtDNA. [[Complex I|CI]], [[CIII]] and [[CIV]] are H+ pumps that drive [[hydrogen ion]]s against the electrochemical [[protonmotive force]] ''pmF'' and thus generating the ''pmF'', driven by electron transfer from reduced substrates to oxygen. In contrast, [[ATP synthase]] (also known as CV) is a H+ pump that utilizes the exergy of proton flow along the protonmotive force to drive phosphorylation of [[ADP]] to [[ATP]].P]].)
Malate dehydrogenase + (Mitochondrial '''malate dehydrogenase''' i … Mitochondrial '''malate dehydrogenase''' is localized in the mitochondrial matrix and oxidizes [[malate]], generated from fumarate by fumarase, to [[oxaloacetate]], reducing NAD+ to NADH+H+ in the [[TCA cycle]]. Malate is added as a substrate in most [[N-pathway control state]]s.[[N-pathway control state]]s.)
Proton pump + (Mitochondrial '''proton pumps''' are large … Mitochondrial '''proton pumps''' are large enzyme complexes (CI, CIII, CIV, CV) spanning the inner mt-membrane, partially encoded by mtDNA. [[Complex I|CI]], [[CIII]] and [[CIV]] are proton pumps that drive [[proton]]s against the electrochemical [[protonmotive force]], driven by electron transfer from reduced substrates to oxygen. In contrast, [[ATP synthase]] (also known as CIV) is a proton pump that utilizes the energy of proton flow along the protonmotive force to drive phosphorylation of [[ADP]] to [[ATP]].[[ATP]].)
MiR06Cr + (Mitochondrial respiration medium, '''MiR06Cr''', developed for oxygraph incubations of mitochondrial preparations - ''[[permeabilized muscle fibers]]''. MiR06Cr = [[MiR06]] + 20 mM [[Creatine|creatine]].)
MiR05Cr + (Mitochondrial respiration medium, '''MiR05Cr''', developed for oxygraph incubations of mitochondrial preparations - ''[[permeabilized muscle fibers]]''. MiR05Cr = [[MiR05]] + 20 mM [[Creatine|creatine]].)
Mitochondrial respiration media: comparison + (Mitochondrial respiratory capacity and con … Mitochondrial respiratory capacity and control are compared in different '''mitochondrial respiration media''', MiRs, to evaluate the quality of MiRs in preserving mitochondrial function and to harmonize results obtained in various studies using different MiRs. In some cases alterations of the formulation are incorporated to optimize conditions for the simultaneous measurement of multiple parameters, e.g. respiration and [[ROS]] production.[[ROS]] production.)
Hydrogen + (Molecular '''hydrogen''' H2< … Molecular '''hydrogen''' H2 is a constituent of the air with a volume fraction of 0.00005. It is a colorless and odorless gas with a molecular mass of 2.016. Its pharmacological potential and effects on mitochondrial metabolism are discussed in various publications without complete evidence on the underlying mechanisms.ithout complete evidence on the underlying mechanisms.)
Scattering + (Most biological samples do not consist sim … Most biological samples do not consist simply of pigments but also particles (e.g. cells, fibres, mitochondria) which scatter the [[incident light]]. The effect of '''scattering''' is an apparent increase in [[absorbance]] due to an increase in pathlength and the loss of light scattered in directions other than that of the detector. Two types of scattering are encountered. For incident light of wavelength ''λ'', Rayleigh scattering is due to particles of diameter < ''λ'' (molecules, sub-cellular particles). The intensity of scatter light is proportional to ''λ''4 and is predominantly backward scattering. Mie scattering is caused by particles of diameter of the order of or greater than ''λ'' (tissue cells). The intensity of scatter light is proportional to 1/''λ'' and is predominantly forward scattering.ional to 1/''λ'' and is predominantly forward scattering.)
Volume of the solute + (Most of the chemicals for SUIT protocol ti … Most of the chemicals for SUIT protocol titrations are prepared by weighing the substance on the balance, transferring to a volumetric glass flask and adding solvent until the intended volume is reached. However, for practical reasons some of the chemical compounds are prepared by just adding the solvent instead of adjusting it's volume. For example, this approach is useful if the substance is very toxic. Then an arbitratry amount is taken, its mass determined on the balance without trying to reach a specific value and the necessary amount of solvent is added. Adding the solvent instead of adjusting its volume is also useful if small amounts are needed (e.g. 1 mL) or if the compound has to be prepared directly before using it like Pyruvate. In these cases the volume contributed by the solute was tested.lume contributed by the solute was tested.)
Carrier control titrations + (Most of the nonpolar compounds have to be … Most of the nonpolar compounds have to be diluted in organic solvents such as DMSO or acetonitrile in order to use them for the titrations in the SUIT protocols. However, the solvent (carrier) itself could affect the mitochondrial physiology and promote alterations that we need to take into account. For this reason, it is necessary to run in parallel to our treatment experiment a control experiment on which we will add a '''carrier control titration''' to test if it affects our sample or not.' to test if it affects our sample or not.)
Q + (Multiple meanings of Q ::::» [[Coenzyme Q]] Q ::::» [[Charge]] ''Q'', ''Q''el ::::» [[Heat]] ''Q'', ''Q''th)
Nigericin + (Nigericin is a H+/K … Nigericin is a H+/K+ antiporter, which allows the electroneutral transport of these two ions in opposite directions across the mitochondrial inner membrane following the K+ concentration gradient. In the presence of K+, nigericin decreases pH in the mitchondrial matrix, thus, almost fully collapses the transmembrane ΔpH, which leads to the compensatory increase of the electric [[Mitochondrial membrane potential|mt-membrane potential]]. Therefore, it is ideal to use to dissect the two components of the [[Protonmotive force|protonmotive force]], ΔpH and [[Mitochondrial membrane potential|mt-membrane potential]]. It is recommended to use the lowest possible concentration of nigericin, which creates a maximal mitochondrial hyperpolarization. In the study of [[Komlodi 2018 J Bioenerg Biomembr]], 20 nM was applied on brain mitochondria isolated from guinea-pigs using 5 mM [[Succinate|succinate]] in the [[LEAK respiration|LEAK state]] which caused maximum hyperpolarisation, but did not fully dissipate the transmembrane ΔpH. Other groups (Selivanov et al 2008; Lambert et al 2004), however, used 100 nM nigericin, which in their hands fully collapsed transmembrane ΔpH using succinate as a respiratory substrate on isolated rat brain and skeletal muscle in the [[LEAK respiration|LEAK state]].AK respiration|LEAK state]].)
Viruses and mitochondrial medicine + (Not enough is known about '''viruses and mitochondrial medicine''', although several studies point towards a link between viral infection and mitochondrial dysfunction using high-resolution respirometry, with potential impact on drug development.)
Nuclear receptors + (Nuclear receptors are ligand-dependent transcription factors.)
Equivalence + (Numerical '''equivalence''' (symbol ≡) indicates that two quantities are numerically equal, even if the full meaning may be different. For instance: 1 ≡ 1·1 and 1 ≡ 1/1. In contrast to ≡, the symbol = indicates physicochemical [[equality]].)
O2k-Virtual Support + (O2k-Virtual support includes 8 individual … O2k-Virtual support includes 8 individual hours. Via a live video link, Oroboros experts guide you step-by-step on topics of your choice, such as O2k instrumental setup and service of the polarographic oxygen sensors (POS) for instrumental quality control, an essential component of HRR. This offers the opportunity to analyze and discuss your experimental [[DatLab]] files obtained with your O2k with the bioenergetics experts of Oroboros. It offers flexibility to participants and gives the option to choose virtual sessions that best fit individual needs.l sessions that best fit individual needs.)
BME cutoff points + (Obesity is defined as a disease associated … Obesity is defined as a disease associated with an excess of body fat with respect to a healthy reference condition. Cutoff points for [[body mass excess]], '''BME cutoff points''', define the critical values for underweight (-0.1 and -0.2), overweight (0.2), and various degrees of obesity (0.4, 0.6, 0.8, and above). BME cutoffs are calibrated by crossover-points of BME with established BMI cutoffs.oints of BME with established BMI cutoffs.)
Creative Commons Attribution License + (Open Access preprints (not peer-reviewed) … Open Access preprints (not peer-reviewed) and articles (peer-reviewed) distributed under the terms of the '''Creative Commons Attribution License''' allow unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited. © remains with the authors, who have granted the publisher license in perpetuity.anted the publisher license in perpetuity.)

Open - DatLab + (Open a previously recorded [[DatLab]] file.)

Internationale Gesellschaft fuer Regenerative Mitochondrien-Medizin + (Organizer of * [http://bioblast.at/index. … Organizer of * [http://bioblast.at/index.php/Klinische_MitochondrienMedizin_und_Umweltmedizin_2015 Klinische MitochondrienMedizin und Umweltmedizin 2015]* [http://wiki.oroboros.at/index.php/Klinische_MitochondrienMedizin_und_Umweltmedizin_2016_Heidelberg_DE Klinische MitochondrienMedizin und Umweltmedizin 2016]* [http://wiki.oroboros.at/index.php/Klinische_Mitochondrienmedizin_und_Umweltmedizin_2017_Heidelberg_DE Klinische MitochondrienMedizin und Umweltmedizin 2017]* [[Clinical Mitochondria- and Environmental Medicine 2018 Heidelberg DE|Klinische MitochondrienMedizin und Umweltmedizin 2018]][[Clinical Mitochondria- and Environmental Medicine 2018 Heidelberg DE|Klinische MitochondrienMedizin und Umweltmedizin 2018]])
Pyruvate dehydrogenase complex + (Oxidative decarboxylation of pyruvate is catalyzed by the '''pyruvate dehydrogenase complex''' in the mt-matrix, and yields acetyl-CoA.)
P/O ratio + (P/O ratio stands for phosphate to atomic oxygen ratio, where P indicates phosphorylation of ADP to ATP (or GDP to GTP).)
Equality + (Physicochemical '''equality''' (symbol =) indicates in an equation not only numerical [[equivalence]] (symbol ≡), but an identity of the full meaning.)
Intracellular oxygen + (Physiological, '''intracellular oxygen pressure''' is significantly lower than air saturation under normoxia, hence respiratory measurements carried out at air saturation are effectively hyperoxic for cultured cells and isolated mitochondria.)
RT + (RT indicates '''room temperature''' or 25 °C. ''RT'' is the [[gas constant]] ''R'' [kJ/mol] multiplied by absolute [[temperature]] ''T'' [K]. This is the motive force quantum in the amount format ([[Gnaiger 2020 BEC MitoPathways]]).)
Warburg effect + (Recently, controversies had a renaissance … Recently, controversies had a renaissance on the much neglected Crabtree effect (aerobic glycolysis in a large range of cells exposed to glucose or fructose, with fully functional mitochondria; Crabtree 1929; Gnaiger and Kemp 1990) versus the '''Warburg effect''' (loss of mitochondrial function inducing cancer and stimulating compensatory aerobic glycolysis in the presence of oxygen; Warburg 1956; see list of references for reviews). Today it is widely accepted that ‘''the Warburg effect is not consistent across all cancer types''’ (Potter et al 2016) and reprogramming of mitochondrial energy metabolism represents a functional adjustment of cancer cells (Schöpf et al 2020).tment of cancer cells (Schöpf et al 2020).)
NADH fluorescence + (Reduced nicotinamide adenine dinucleotide ([[NADH]]) is amongst the [[intrinsic fluorophores]] and can be used as an intracellular indicator of hypoxia. The excitation wavelength is 340 nm and emission is at 460 nm.)
2-Hydroxyglutarate + (Reduction of [[oxoglutarate]] … Reduction of [[oxoglutarate]] (2OG or alpha-ketoglutarate) to '''2-hydroxyglutarate''' (2HG) is driven by NADPH. 2HG is also formed in side reactions of [[lactate dehydrogenase]] and [[malate dehydrogenase]]. Millimolar 2HG concentrations are found in some cancer cells compared to , whereas side activities of lactate and malate dehydrogenase form submillimolar s-2-hydroxyglutarate (s-2HG). However, even wild-type IDH1 and IDH2, notably under shifts toward reductive carboxylation glutaminolysis or changes in other enzymes, lead to “intermediate” 0.01–0.1 mM 2HG levels, for example, in breast carcinoma compared with nanomolar concentrations in benign cells. 2HG is considered an important player in reprogramming metabolism of cancer cells. reprogramming metabolism of cancer cells.)
Publicly deposited protocols + (Researchers need to be introduced into adh … Researchers need to be introduced into adhering to '''publicly deposited protocols'''. [[Prespecified protocols |Prespecified]] and [[time-stamped protocols]] that are publicly deposited may help to save Millions of Euros that may otherwise be wasted on research that is lacking coherent standards.search that is lacking coherent standards.)
Oxygen flow + (Respiratory '''oxygen flow''' is the oxyge … Respiratory '''oxygen flow''' is the oxygen consumption per total [[system]], which is an [[extensive quantity]]. [[Flow]] is advancement of a transformation in a system per time [mol·s-1], when 'system' is defined as the experimental system (e.g. an open or closed chamber). Flow is distinguished from the size-specific quantity [[flux]] obtained by normalization of flow per volume of the experimental system [mol·s-1·m-3]. An experimental object, e.g. a living cell, may be considered as the 'experimental system'. Then oxygen flow per cell has the unit [mol·s-1·x-1], where [x] is the [[elementary unit]] for a [[count]]. Oxygen flow or respiration per cell [amol·s-1·x-1] = [pmol·s-1·Mx-1] is normalized for the cell count, distinguished from [[oxygen flux]] (e.g. per mg protein or wet mass). These are different forms of [[normalization of rate]].zation of rate]].)
Reverse electron flow from CII to CI + (Reverse electron flow from CII to CI stimu … Reverse electron flow from CII to CI stimulates production of [[ROS]] when mitochondria are incubated with succinate without rotenone in the LEAK state at a high [[mt-membrane potential]]. Depolarisation of the mt-membrane potential (''e.g.'' after ADP addition to stimulate OXPHOS) leads to inhibition of RET and therefore, decrease of RET-initiated ROS production. RET can be also measured when mitochondria are respiring using [[Glycerophosphate |Gp]] without rotenone in the [[LEAK respiration|LEAK]] state. Addition of IQ-side inhibitors (ubiquinone-binding side of CI) of [[Complex I |CI]] usually block RET. The following SUIT protocols allow you to measure RET-initiated H2O2 flux in [[mitochondrial preparations]]: [[SUIT-009]] and [[SUIT-026]].[[SUIT-026]].)
Rhodamine 123 + (Rhodamine 123 (Rh123) is an [[extrinsic fluorophores|extrinsic fluorophore]] … Rhodamine 123 (Rh123) is an [[extrinsic fluorophores|extrinsic fluorophore]] and can be used as a probe to determine changes in [[Mitochondrial_membrane_potential|mitochondrial membrane potential]]. Rh123 is a lipophilic cation that is accumulated by mitochondria in proportion to Δ''ψ''mt. Using ethanol as the solvent, the excitation maximum is 511 nm and the emission maximum is 534 nm. The recommended excitation and emission wavelengths in PBS are 488 and 515-575 nm, respectively (Sigma-Aldrich). are 488 and 515-575 nm, respectively (Sigma-Aldrich).)
Bioblasts + (Richard Altmann (1894) defined the 'elemen … Richard Altmann (1894) defined the 'elementary organisms' as '''Bioblasts'''. He observed granula in cells stained with osmium and viewed ‘the protoplasm as a colony of bioblasts’. "Microorganisms and granula are at an equivalent level and represent elementary organisms, which are found wherever living forces are acting, thus we want to describe them by the common term bioblasts. In the bioblast, that morphological unit of living matter appears to be found." [[Altmann 1894 Verlag Von Veit & Comp|Altmann 1894]]; p. 141. Altmann is thus considered as the discoverer of [[mitochondria]] (the granula), which constitute together with the microorganisms the ''bioblasts'' (the elementary organisms). Bioblasts are the aliens with permanent residence in our cells ([[Bioblasts#Bioblasts_.E2.80.93_the_aliens_with_permanent_residence_in_our_cells|Gnaiger 2010]]).oblasts#Bioblasts_.E2.80.93_the_aliens_with_permanent_residence_in_our_cells|Gnaiger 2010]]).)
Zenodo + (Science Europe: "Zenodo is an open source … Science Europe: "Zenodo is an open source and free repository for storing data, code, materials, and any research artefact. It was created by CERN and launched within the frame of the OpenAIRE project, commissioned by the European Commission. It aims at fostering free and easy access to scientific results, scientific data, software, and publications to all researchers."are, and publications to all researchers.")
ASAPbio + (Science only progresses as quickly and eff … Science only progresses as quickly and efficiently as it is shared. But even with all of the technological capabilities available today, the process of publishing scientific work is taking longer than ever. '''ASAPbio''' (Accelerating Science and Publication in biology) is a scientist-driven nonprofit working to address this problem by promoting innovation and transparency in life sciences communication.In 2015, ASAPbio founder Ron Vale published an analysis of the increasing time to first-author publication among graduate students at UCSF, and proposed a more widespread use of preprints in the life sciences as a potential solution.the life sciences as a potential solution.)
Substrate control state + (See '''[[Electron-transfer-pathway state]]''')
ET-pathway substrate types + (See '''[[Electron-transfer-pathway state]]''')
Physiological pathway-control state + (See [[Electron-transfer-pathway state]].)
Fluorescent marker + (See [[Extrinsic fluorophores]])
Delete points + (Select '''Delete points''' in the [[Marks - DatLab |Mark information]] window to remove all data points in the marked section of the active plot. See also [[Interpolate points]] and [[Restore points]] or [[Recalculate slope]].)
Interpolate points + (Select '''Interpolate points''' in the [[Marks - DatLab |Mark information]] window to interpolate all data points in the marked section of the active graph. See also [[Delete points]] and [[Restore points]] or [[Recalculate slope]].)
Mouse control: Zoom + (Select '''Mouse Control: Zoom''' in the Graph-menu or press [Ctrl+Z].)
Recalculate slope + (Select '''Recalculate slope''' (Recalc. sl … Select '''Recalculate slope''' (Recalc. slope) in the [[Marks - DatLab |Mark information]] window to restore data points in the marked section of the active Flux / Slope plot, if [[Delete points]] or [[Interpolate points]] was used before. The entire plot is recalculated, such that other marked sections which may have been deleted are also restored. Compare [[Restore points]].[[Restore points]].)
Restore points + (Select '''Restore points''' in the [[Marks - DatLab |Mark information]] window to restore data points in the marked section of the active signal plot, if [[Delete points]] or [[Interpolate points]] was used before. Compare [[Recalculate slope]].)