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Huang Y, Swarge BN, Roseboom W, Bleeker JD, Brul S, Setlow P, Kramer G. Integrative Metabolomics and Proteomics Allow the Global Intracellular Characterization of Bacillus subtilis Cells and Spores. J Proteome Res 2024; 23:596-608. [PMID: 38190553 PMCID: PMC10845140 DOI: 10.1021/acs.jproteome.3c00386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 12/01/2023] [Accepted: 12/08/2023] [Indexed: 01/10/2024]
Abstract
Reliable and comprehensive multi-omics analysis is essential for researchers to understand and explore complex biological systems more completely. Bacillus subtilis (B. subtilis) is a model organism for Gram-positive spore-forming bacteria, and in-depth insight into the physiology and molecular basis of spore formation and germination in this organism requires advanced multilayer molecular data sets generated from the same sample. In this study, we evaluated two monophasic methods for polar and nonpolar compound extraction (acetonitrile/methanol/water; isopropanol/water, and 60% ethanol) and two biphasic methods (chloroform/methanol/water, and methyl tert-butyl ether/methanol/water) on coefficients of variation of analytes, identified metabolite composition, and the quality of proteomics profiles. The 60% EtOH protocol proved to be the easiest in sample processing and was more amenable to automation. Collectively, we annotated 505 and 484 metabolites and identified 1665 and 1562 proteins in B. subtilis vegetative cells and spores, respectively. We also show differences between vegetative cells and spores from a multi-omics perspective and demonstrate that an integrative multi-omics analysis can be implemented from one sample using the 60% EtOH protocol. The results obtained by the 60% EtOH protocol provide comprehensive insight into differences in the metabolic and protein makeup of B. subtilis vegetative cells and spores.
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Affiliation(s)
- Yixuan Huang
- Laboratory
for Mass Spectrometry of Biomolecules, Swammerdam Institute for Life
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
- Molecular
Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Bhagyashree N. Swarge
- Laboratory
for Mass Spectrometry of Biomolecules, Swammerdam Institute for Life
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
- Molecular
Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Winfried Roseboom
- Laboratory
for Mass Spectrometry of Biomolecules, Swammerdam Institute for Life
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Jurre D. Bleeker
- Laboratory
for Mass Spectrometry of Biomolecules, Swammerdam Institute for Life
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Stanley Brul
- Molecular
Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Peter Setlow
- Department
of Molecular Biology and Biophysics, UConn
Health, Farmington, Connecticut 06030-3305, United States
| | - Gertjan Kramer
- Laboratory
for Mass Spectrometry of Biomolecules, Swammerdam Institute for Life
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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Ribaric K, Bleeker JD, Wit HP. Perception of audio-frequency vibrations by profoundly deaf subjects after fenestration of the vestibular system. Acta Otolaryngol 1992; 112:45-9. [PMID: 1575036 DOI: 10.3109/00016489209100781] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A survey is given of the literature on the sensitivity of the vestibular system to audio-frequency sound and vibration in animals. It is also shown that responses to such stimuli can be evoked in man. On the basis of these results it was decided to perform a fenestration of the horizontal semicircular canal in three profoundly deaf volunteers, with normal sensitivity of the vestibular system. The first results are promising: the threshold for audio-frequency vibration in the operated ears improved markedly. Furthermore, the subjects reported perception of environmental sounds using a bone conductor hearing aid.
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Affiliation(s)
- K Ribaric
- Department of Otolaryngology, University of Zagreb, Yugoslavia
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Wit HP, Scheurink AJ, Bleeker JD. Hearing thresholds of normal and fenestrated deaf pigeons. A behavioural study on hearing with the vestibular organ. Acta Otolaryngol 1985; 100:36-41. [PMID: 3875208 DOI: 10.3109/00016488509108585] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Hearing thresholds were measured for 5 normal pigeons with the heart-rate conditioning method. After extirpation of the membranous cochlea on both sides and fenestration of the lateral canals, hearing thresholds were measured again with the same method at 250, 750 and 1500 Hz. Hearing thresholds found in this way for deaf fenestrated pigeons correspond very well to threshold values for the "Tullio effect". Electrical activity in the vestibular nerve evoked by sound is thought to be the origin of these phenomena.
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Abstract
Results obtained with cochlear electrode implants in totally deaf patients indicate that this means of transmitting auditory information can be of great help in lipreading and remote sound contact. However, using an alternate approach involving fenestration of the labyrinth and acoustical stimulation of the vestibular nerve, we generated a signal in an animal model superior in quality to that generated by electrical stimulation of the cochlea of the cat. This communication raises the question of whether a vestibular signal could be processed so that a deaf person could hear and identify sounds.
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Wit HP, Bleeker JD, Mulder HH. Responses of pigeon vestibular nerve fibers to sound and vibration with audiofrequencies. J Acoust Soc Am 1984; 75:202-208. [PMID: 6699281 DOI: 10.1121/1.390396] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Single unit recordings were made from the nerve branch innervating the crista in the horizontal semicircular canal of a pigeon. The vestibular organ was either stimulated with sound through the ear canal or with a vibrator in contact with the membraneous ampulla roof. Units responding to sound or vibration showed tuning with a best frequency of approximately 0.7 kHz. The average low-frequency slope of the tuning curves is--16 dB/oct; the average high-frequency slope 20 dB/oct. The threshold amplitude for vibrator stimulation is 30 nm. This value comes close to the calculated threshold value for cupula deflection in the human semicircular canal.
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Wit HP, Bleeker JD. A possible method to study transient effects of ototoxic agents on the vestibular system. Arch Otorhinolaryngol 1983; 238:175-8. [PMID: 6605141 DOI: 10.1007/bf00454310] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A method is described in which the direct influence of anoxia and ototoxic agents on the vestibular system can be studied. After fenestration of the lateral semicircular canal in pigeons, a vestibular whole nerve action potential (VAP) could be recorded during acoustic stimulation. The cochlear whole nerve action potential (CAP) was recorded simultaneously. The influence of ototoxic agents and anoxia upon the amplitude of these action potentials was studied.
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Abstract
A 37-year-old woman had peripheral facial palsy. It took nearly two weeks to establish the syphilitic origin. This rare disease is discussed with reference to nine cases reported in the literature since 1945. The prognosis is good with early antibiotic therapy.
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Abstract
Cochlea-deprived pigeons were placed on a rotating platform and stimulated with sound after fenestration of the lateral canal. The whole nerve action potentials evoked by the sound stimulus were suppressed by the rotatory stimulus. The time course of this suppression makes the lateral crista the most acceptable site of generation of the action potential. In another type of experiment, single unit responses were recorded from the lateral ampullary nerve during stimulation with sound. Phase-lock of the response to the stimulus was best for frequencies fom 0.5 to 1 kHz.
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Wit HP, Bleeker JD, Segenhout JH. Vestibular and cochlear responses to acoustic transients. Some properties of whole-nerve action potentials in pigeons. Acta Otolaryngol 1981; 92:409-22. [PMID: 6976059 DOI: 10.3109/00016488109133280] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In a previous paper attention was drawn to the possibility of introducing the labyrinth as an organ for sound perception. Behavioural responses of the guinea pig as well as electrophysiological results in the pigeon indicated that fenestration of the labyrinth might be an alternative to cochlear implants. In this paper gross electrode electrophysiological responses to transient acoustic stimuli in the pigeon are further analysed and the influence of fenestration of the lateral canal and cochlea extirpation upon these responses was studied. The vestibular AP generated by sound stimuli could, among other things, be distinguished from the cochlear AP by its shorter latency. The dynamic range of this vestibular AP is at least 30 dB. The largest vestibular responses were obtained for stimulus frequencies below about 1.5 kHz. A simple hydromechanical model to explain the observed responses is discussed.
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Abstract
A serological study using the complement fixation reaction for herpes zoster virus (HZV) and herpes simplex virus (HSV) was carried out on 120 patients with Bell's palsy and 5 with Ramsay-Hunt syndrome. Three Bell's palsy patients (2.5%) showed a significant HZV antibody titre rise. In no case was a rise of HSV antibody titre observed. Two Ramsay-Hunt patients showed a significant rise of HZV antibody titre. Rise of HSV antibody titre was not observed in this group either. The Monosticon test to exclude infectious mononucleosis, proved to be negative in all cases of Bell's palsy. In 2 cases of Bell's palsy, a biopsy specimen for virus isolation was obtained during a decompression operation. No virus could be cultured from the epineurium of the first patient. That of the second patient was found to contain HSV type I. There was no serological evidence of a HSV antibody titre rise.
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Abstract
A report is presented of experiments on guinea pigs and pigeons concerning behavioural and electrophysiological responses of the labyrinth to sound. In the guinea pigs the cochlea was destroyed on both sides by CO2 laser radiation and fenestration of the lateral semicircular canal was done. In the pigeons the cochlea was removed before fenestration. On account of the results obtained, fenestration of the lateral canal in patients with bilateral total cochlear loss can be considered as an alternative to monopolar cochlear implants.
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Abstract
A comparison between the mucosal pathology of the respiratory tract in cases of viral infections and of iatrogenic trauma after bronchoscopy and tantalum bronchography indicates that the respiratory mucosa has a very high degree of resistance against infection after trauma and is capable of rapid regeneration as long as the production of mucus continues and the surface remains moist. Viral infection might primarily inhibit mucus production and open the road to secondary infection.
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Soudijn ER, Bleeker JD, Hoeksema PE, Molenaar I, van Rooyen JP, Ritsma RJ. Scanning electron microscopic study of the organ of Corti in normal and sound-damaged guinea pigs. Ann Otol Rhinol Laryngol 1976; 85:1-58. [PMID: 962272 DOI: 10.1177/00034894760850s401] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A method was evolved by which the organ of Corti could be examined in its entirety with the scanning electron microscope, the organ meanwhile retaining its spiral form. This made it possible to assess traumatic effects on the cochlea and qualify lesions in terms of extent, localization and pattern. It was also found possible eventually to cut the same specimen into sections for cellular and subcellular studies. The number of guinea pigs examined totalled 91, divided into three groups. The first group was used to study the anatomy of the organ of Corti with special reference to normal variations and artifacts. Unmistakable indications were found that the longest stereocilia of the inner hair cells are linked to the tectorial membrane. The animals of the second group were exposed to pure tones of high intensity, whereupon, lesions of the organ of Corti were described according to intensity, time, and frequency. Three different types of otologic drills were used to perform mastoidectomies on temporal bones and on the cadaver. The noise produced was analyzed as to intensity and frequency range. It was found that the drill with the lowest rpm (and highest torque) produced the highest noise intensities, at levels which can be traumatic to the human organ of hearing. The animals of the third group were exposed to the amplified noise produced by otologic drills of three different types. The resulting lesions in the organ of Corti were examined by the method described for scanning electron microscopy and compared. In spite of the wide variation in individual lesions, patterns of degeneration of three different types could be distinguished. The high-speed and the very-high-speed drill inflicted less damage on the organ of Corti than the low-speed drill. It is therefore advised to refrain from using the latter drill in prolonged operations.
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Bleeker JD, Feenstra L. [Tympanic membrane implantation]. Ned Tijdschr Geneeskd 1975; 119:2099-100. [PMID: 1214921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Bleeker JD. [Masked otitis media in newborn infants]. Ned Tijdschr Geneeskd 1974; 118:777-8. [PMID: 4857220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Abstract
Attention is drawn to the difficulties of estimating the viscoelasticity of organic liquid as bronchial secretion. Neither the capillary viscometer nor the cone-plate viscometer is suitable for this purpose. A new type of viscometer is described which conforms to the requirements of mucus. The instrument operates on the principle of a torsion bar. Use of this instrument showed that the viscoelasticity of bronchial secretion, obtained from the tracheotomies of laryngectomized patients, show great fluctuations in the course of each day. Thus, viscoelasticity measurements made once a day to estimate the effect of a therapeutic procedure, especially if sputum is used, possess no significant value. Only a comparison of day curves will give useful information.
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Bleeker JD, Bossenbroek B, Koudstaal J, Oldhoff J. [Malignant melanoblastomas in rare locations]. Ned Tijdschr Geneeskd 1968; 112:1438-47. [PMID: 5679595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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