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전체 선택해제
총 53건 검색
본문검색 결과만 보기
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Fuel Spiking Test for the Surge Margin Measurement in a Gas Turbine Engine
Lee. Jin-Kun, Lee. Kyung-Jae, Ha. Man-Ho, Kim. Chun-Taek, Yang. Soo-Seok, Lee. Dae-Sung 한국추진공학회 한국추진공학회지 7 Pages
한국추진공학회 한국추진공학회지 2004, Vol.8 No.2 18-24 (7 pages)
가스터빈엔진 압축기의 서지마진을 구하기 위하여 연료 돌출 시험을 수행하였다. 본 시험에 사용된 연료 돌출 신호는 엔진 제어기 신호에 중첩되어 연료 밸브를 제어하는 데 사용되었으며 신호 중첩을 위해 연료 제어기와 함수 발생기로 구성된 보조시스템이 사용되었다. 한국항공우주연구원의 고공엔진시험설비에서 실제 엔진 시험이 이루어졌으며 예비 시험결과, 연료 돌출 신호는 연료 라인과 압축기 토출부에서의 압력 신호와 잘 일치하였다. 이에 따라 특정 속도에서의 서지점을 측정하기 위한 시험이 수행되었으며 시험 결과 연료... -
Development of a monoclonal antibody against deoxynivalenol for magnetic nanoparticle-based extraction and an enzyme-linked immunosorbent assay
Hyuk-Mi Lee, Sung-Ok Song, Sang-Ho Cha, Sung-Bok Wee, Karyn Bischoff, Sung-Won Park, Seong-Wan Son, Hwan-Goo Kang*, Myung-Haing 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 2호 5 143-150 (8 pages)
Monoclonal antibody (mAb, NVRQS-DON) against deoxynivalenol (DON) was prepared. DON-Ag coated enzyme linked immunosorbent assay (ELISA) and DON-Ab coated ELISA were prepared by coating the DON-BSA and DON mAb. Quantitative DON calculation ranged from 50 to 4,000 ng/mL for DON-Ab coated ELISA and from 25 to 500 ng/mL for DON-Ag coated ELISA. 50% of inhibitory concentration values of DON, HT-2, 15-acetyl-DON, and nivalenol were 23.44, 22,545, 5,518 and 5,976 ng/mL based on the DON-Ab coated ELISA.... -
Quantitation of meloxicam in the plasma of koalas (Phascolarctos cinereus) by improved high performance liquid chromatography
Benjamin Kimble, Kong Ming Li, Merran Govendir* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 1호 2 7-14 (8 pages)
An improved method to determine meloxicam (MEL) concentrations in koala plasma using reversed phase high performance liquid chromatography equipped with a photo diode array detector was developed and validated. A plasma sample clean-up step was carried out with hydrophilic- lipophilic copolymer solid phase extraction cartridges. MEL was separated from an endogenous interference using an isocratic mobile phase [acetonitrile and 50 mM potassium phosphate buffer (pH 2.15), 45：55 (v：v)] on a... -
Evaluation of PCR inhibitory effect of enrichment broths and comparison of DNA extraction methods for detection of Salmonella Enteritidis using real-time PCR assay
Ji-Yeon Hyeon, In-Gyun Hwang, Hyo-Sun Kwak, Chankyu Park, In-Soo Choi, Kun-Ho Seo 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 2호 8 143-149 (7 pages)
The best enrichment broth and DNA extraction scheme was determined for rapid and sensitive detection of Salmonella Enteritidis in steamed pork using real-time PCR. The inhibitory effect of commonly used Salmonella enrichment broths, Rappaport-Vassiliadis (RV) and Muller-Kauffmann tetrathionate with novobiocin (MKTTn), on real-time PCR was confirmed. The inhibition of PCR was statistically significant (p ＜ 0.05) in RV and MKTTn, as compared with buffered peptone water (BPW) or phosphate-buffered... -
A multiplex real-time PCR for differential detection and quantification of Salmonella spp., Salmonella enterica serovar Typhimurium and Enteritidis in meats
Su Hwa Lee, Byeong Yeal Jung, Nabin Rayamahji, Hee Soo Lee, Woo Jin Jeon, Kang Seuk Choi, Chang Hee Kweon, Han Sang Yoo* 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2009, 제 10권 제 1호 7 43-51 (9 pages)
Salmonella (S.) Typhimurium and S. Enteritidis are the major causative agents of food-borne illnesses worldwide. Currently, a rapid detection system using multiplex real-time polymerase chain reaction (PCR) has been applied for other food-borne pathogens such as Escherichia coli, Staphylococcus aureus and Streptococcus spp. A multiplex real-time PCR was developed for the simultaneous detection of Salmonella spp., especially S. Typhimurium and S. Enteritidis, in beef and pork. For the specific... -
Evaluation of a Bacillus stearothermophilus tube test as a screening tool for anticoccidial residues in poultry
Anakalo Shitandi, Aila Oketch, Symon Mahungum 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2006, 제 7권 제 2호 14 177-180 (4 pages)
A Bacillus stearothermophilus var. calidolactis C953 tube test was evaluated for its ability in detecting the residue of selected anticoccidial drugs in poultry, specically sulfamethazine, furazolidone, and amprolium. Various concentrations of each drug were injected into chicken liver and kidney tissues and these tissues were tested to determine the drug detection limits for each drug. The detection limit was defined as the drug concentration at which 95% of the test results were interpreted as... -
Pharmacokinetics, tissue residue and plasma protein binding of ofloxacin in goats
Himangshu Baruah, Dulal Chandra Roy, Rohini Kumar Roy, Hirendra Nath Khonikor 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 2호 2 97-101 (5 pages)
Ofloxacin was administered to six male goats intravenously (5 mg/kg) to determine its kinetic behavior, tissue residue, in vitro plasma protein binding and to compute a rational dosage regimen. The concentration of ofloxacin in plasma and tissue samples collected at prescheduled time were estimated by using HPLC. The pharmacokinetic parameters were determined by non-compartmental model and plasma protein binding was estimated by equilibrium dialysis technique. The therapeutic concentration... -
Physiology,Pharmacology,Chemistry : Comparison of Linear and non-Linear equation for the calibration of roxithromycin analysis using Liquid chromatography/mass spectrometry
Jong Hwan Lim , Hyo In Yun 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 7 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2010, 제 50권 제 1호 2 11-17 (7 pages)
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소금 첨가에 따른 도라지 발효 특성과 미생물 변화 및 항비만 효능 평가
신나래, 임수경, 김호준 한방비만학회 대한한방비만학회지 10 Pages
한방비만학회 대한한방비만학회지 2018, 제 18권 제 2호 2 64-73 (10 pages)
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Botulinum toxin type A enhances the inhibitory spontaneous postsynaptic currents on the substantia gelatinosa neurons of the subnucleus caudalis in immature mice
Seon-Hui Jang, Soo-Joung Park, Chang-Jin Lee, Dong-Kuk Ahn, Seong-Kyu Han 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.5 7 539-546 (8 pages)
Botulinum toxin type A (BoNT/A) has been used therapeutically for various conditions including dystonia, cerebral palsy, wrinkle, hyperhidrosis and pain control. The substantia gelatinosa (SG) neurons of the trigeminal subnucleus caudalis (Vc) receive orofacial nociceptive information from primary afferents and transmit the information to higher brain center. Although many studies have shown the analgesic effects of BoNT/A, the effects of BoNT/A at the central nervous system and the action... -
Antidepressant drug paroxetine blocks the open pore of Kv3.1 potassium channel
HyangMiLee, OkHeeChai, SangJuneHahn, BokHeeChoi 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.1 8 71-80 (10 pages)
did not affect ion selectivity and slowed its deactivation time course, resulting in a tail crossover phenomenon. Paroxetine inhibited Kv3.1 channels in a use-dependent manner. Taken together, these results suggest that paroxetine blocks the open state of Kv3.1 channels. Given the role of Kv3.1 in fast spiking of interneurons, our data imply that the blockade of Kv3.1 by paroxetine might elevate epileptic activity of neural networks by interfering with repetitive firing of inhibitory neurons. -
The advantage of topographic prominence-adopted filter for the detection of short-latency spikes of retinal ganglion cells
JungryulAhn, Myoung-HwanChoi, KwangsooKim, SolomonS.Senok, Dong-ilDanCho, Kyo-inKoo, YongsookGoo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.5 10 555-563 (9 pages)
Electrical stimulation through retinal prosthesis elicits both short and long-latency retinal ganglion cell (RGC) spikes. Because the short-latency RGC spike is usually obscured by electrical stimulus artifact, it is very important to isolate spike from stimulus artifact. Previously, we showed that topographic prominence (TP) discriminator based algorithm is valid and useful for artifact subtraction. In this study, we compared the performance of forward backward (FB) filter only vs. TP-adopted... -
Dust particles-induced intracellular Ca2+ signaling and reactive oxygen species in lung fibroblast cell line MRC5
DongUnLee, MinJeongJi, JungYunKang, SunYoungKyung, JeongHeeHong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.3 7 327-334 (8 pages)
Epidemiologic interest in particulate matter (PM) is growing particularly because of its impact of respiratory health. It has been elucidated that PM evoked inflammatory signal in pulmonary epithelia. However, it has not been established Ca2+ signaling mechanisms involved in acute PM-derived signaling in pulmonary fibroblasts. In the present study, we explored dust particles PM modulated intracellular Ca2+ signaling and sought to provide a therapeutic strategy by antagonizing PM-induced... -
Brief low [Mg2+]o-induced Ca2+ spikes inhibit subsequent prolonged exposure-induced excitotoxicity in cultured rat hippocampal neurons
HeeJungKim, JiSeonYang, ShinHeeYoon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.1 13 101-109 (9 pages)
Reducing [Mg2+]o to 0.1 mM can evoke repetitive [Ca2+]i spikes and seizure activity, which induces neuronal cell death in a process called excitotoxicity. We examined the issue of whether cultured rat hippocampal neurons preconditioned by a brief exposure to 0.1 mM [Mg2+]o are rendered resistant to excitotoxicity induced by a subsequent prolonged exposure and whether Ca2+ spikes are involved in this process. Preconditioning by an exposure to 0.1 mM [Mg2+]o for 5 min inhibited significantly... -
Enhancement of GluN2B Subunit-Containing NMDA Receptor Underlies Serotonergic Regulation of Long-Term Potentiation after Critical Period in the Rat Visual Cortex
KayoungJoo, Duck-JooRhie, , Hyun-JongJang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.6 7 523-531 (9 pages)
Serotonin [5-hydroxytryptamine (5-HT)] regulates synaptic plasticity in the visual cortex. Although the effects of 5-HT on plasticity showed huge diversity depending on the ages of animals and species, it has been unclear how 5-HT can show such diverse effects. In the rat visual cortex, 5-HT suppressed long-term potentiation (LTP) at 5 weeks but enhanced LTP at 8 weeks. We speculated that this difference may originate from differential regulation of neurotransmission by 5-HT between the age... -
Phasic and Tonic Inhibition are Maintained Respectively by CaMKII and PKA in the Rat Visual Cortex
KayoungJoo, ShinHeeYoon, Duck-JooRhie, , Hyun-JongJang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.6 11 517-524 (8 pages)
Phasic and tonic γ-aminobutyric acidA (GABAA) receptor-mediated inhibition critically regulate neuronal information processing. As these two inhibitory modalities have distinctive features in their receptor composition, subcellular localization of receptors, and the timing of receptor activation, it has been thought that they might exert distinct roles, if not completely separable, in the regulation of neuronal function. Inhibition should be maintained and regulated depending on changes in... -
Long-Term Potentiation of Excitatory Synaptic Strength in Spinothalamic Tract Neurons of the Rat Spinal Cord
SungWonHur, JooMinPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.6 12 553-558 (6 pages)
to induce long-term potentiation (LTP) in the STT neurons. Coincident stimulation of both pre- and postsynaptic neurons using TBS showed immediate and persistent increase in AMPA receptor-mediated EPSCs. LTP can also be induced by postsynaptic spiking together with pharmacological stimulation using chemical NMDA. TBS-induced LTP observed in STT neurons was blocked by internal BAPTA, or Ni2+, a T-type VOCC blocker. However, LTP was intact in the presence of L-type VOCC blocker. These results... -
The Safety and Pharmacokinetics of Cyanidin-3-Glucoside after 2-Week Administration of Black Bean Seed Coat Extract in Healthy Subjects
SangilJeon, SeunghoonHan, JongtaeLee, TaegonHong, Dong-SeokYim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.4 4 249-253 (5 pages)
We analyzed the pharmacokinetics of C3G on data from twelve subjects, after 2-week multiple dosing of black bean (Phaseolus vulgaris, Cheongjakong-3-ho) seed coat extract, using the mixed effect analysis method (NONMEM, Ver. 6.2), as well as the conventional non-compartmental method. We also examined the safety and tolerability. The PK analysis used plasma concentrations of the C3G on day 1 and 14. There was no observed accumulation of C3G after 2-week multiple dosing of black bean seed coat... -
Spontaneous Oscillatory Rhythm in Retinal Activities of Two Retinal Degeneration (rd1 and rd10) Mice
YongSookGoo, KunNoAhn, YeongJunSong, SuHeokAhn, SeungKeeHan, SangBaekRyu, KyungHwanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.6 13 415-422 (8 pages)
Previously, we reported that besides retinal ganglion cell (RGC) spike, there is ∼10 Hz oscillatory rhythmic activity in local field potential (LFP) in retinal degeneration model, rd1 mice. The more recently identified rd10 mice have a later onset and slower rate of photoreceptor degeneration than the rd1 mice, providing more therapeutic potential. In this study, before adapting rd10 mice as a new animal model for our electrical stimulation study, we investigated electrical characteristics of... -
A Computational Model of the Temperature-dependent Changes in Firing Patterns in Aplysia Neurons
NamGyuHyun, Kwang-HoHyun, Kwang-BeomHyun, Jin-HeeHan, KyungminLee, Bong-KiunKaang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.6 8 371-382 (12 pages)
range of spiking patterns we modified nonlinear differential equations that Chay and Lee made using temperature-dependent scaling factors. To refine the equations, we also analyzed the spike pattern changes in the presence of potassium channel blockers. Based on the solutions of these equations and potassium channel blocker experiments, we found that, as temperature increases, the maximum value of the potassium channel relaxation time constant, Քn(t) increases, but the maximum value of the... -
Direct Corticosteroid Modulation of GABAergic Neurons in the Anterior Hypothalamic Area of GAD65-eGFP Mice
SeungYubShin, TaeHeeHan, SoYeongLee, SeongKyuHan, JinBongPark, FerencErdelyi, GaborSzabo, PanDongRyu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.3 7 163-169 (7 pages)
Corticosterone is known to modulate GABAergic synaptic transmission in the hypothalamic paraventricular nucleus. However, the underlying receptor mechanisms are largely unknown. In the anterior hypothalamic area (AHA), the sympathoinhibitory center that project GABAergic neurons onto the PVN, we examined the expression of glucocorticoid receptor (GR) and mineralocorticoid receptor (MR) of GABAergic neurons using intact GAD65-eGFP transgenic mice, and the effects of corticosterone on the burst... -
The Development of Phasic and Tonic Inhibition in the Rat Visual Cortex
Hyun-JongJang, Kwang-HyunCho, , Sung-WonPark, Myung-JunKim, ShinHeeYoon, Duck-JooRhie 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.6 8 399-406 (8 pages)
Gamma-aminobutyric acid (GABA)-ergic inhibition is important in the function of the visual cortex. In a previous study, we reported a developmental increase in GABAA receptor-mediated inhibition in the rat visual cortex from 3 to 5 weeks of age. Because this developmental increase is crucial to the regulation of the induction of long-term synaptic plasticity, in the present study we investigated in detail the postnatal development of phasic and tonic inhibition. The amplitude of phasic... -
Effects of Serotonin on the Induction of Long-term Depression in the Rat Visual Cortex
Hyun-JongJang, Kwang-HyunCho, , Sung-WonPark, Myung-JunKim, ShinHeeYoon, Duck-JooRhie 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.5 14 337-343 (7 pages)
Long-term potentiation (LTP) and long-term depression (LTD) have both been studied as mechanisms of ocular dominance plasticity in the rat visual cortex. In a previous study, we suggested that a developmental increase in serotonin [5-hydroxytryptamine (5-HT)] might be involved in the decline of LTP, since 5-HT inhibited its induction. In the present study, to further understand the role of 5-HT in a developmental decrease in plasticity, we investigated the effect of 5-HT on the induction of LTD... -
Electrically-evoked Neural Activities of rd1 Mice Retinal Ganglion Cells by Repetitive Pulse Stimulation
SangBaekRyu, JangHeeYe, JongSeungLee, YongSookGoo, ChiHyunKim, KyungHwanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 6 443-448 (6 pages)
For successful visual perception by visual prosthesis using electrical stimulation, it is essential to develop an effective stimulation strategy based on understanding of retinal ganglion cell (RGC) responses to electrical stimulation. We studied RGC responses to repetitive electrical stimulation pulses to develop a stimulation strategy using stimulation pulse frequency modulation. Retinal patches of photoreceptor-degenerated retinas from rd1 mice were attached to a planar multi-electrode array... -
Accurate Representation of Light-intensity Information by the Neural Activities of Independently Firing Retinal Ganglion Cells
SangBaekRyu, JangHeeYe, ChiHyunKim, YongSookGoo, KyungHwanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.3 13 221-227 (7 pages)
For successful restoration of visual function by a visual neural prosthesis such as retinal implant, electrical stimulation should evoke neural responses so that the information on visual input is properly represented. A stimulation strategy, which means a method for generating stimulation waveforms based on visual input, should be developed for this purpose. We proposed to use the decoding of visual input from retinal ganglion cell (RGC) responses for the evaluation of stimulus encoding... -
Electrophysiological and Morphological Classification of Inhibitory Interneurons in Layer II/III of the Rat Visual Cortex
Duck-JooRhie, HoYoungKang, GyeongRyulRyu, Myung-JunKim, ShinHeeYoon, SangJuneHahn, DoSikMin, Yang-HyeokJo, Myung-SukKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.6 5 317-323 (7 pages)
the rat primary visual cortex, using patch-clamp recording and confocal reconstruction, and classified inhibitory interneurons into fast spiking (FS), late spiking (LS), burst spiking (BS), and regular spiking non-pyramidal (RSNP) neurons according to their electrophysiological characteristics. Global parameters to identify inhibitory interneurons were resting membrane potential (＞70 mV) and action potential (AP) width (＜0.9 msec at half amplitude). FS could be differentiated from LS,... -
A Simple and Sensitive Assay for Cefepime in Human Plasma Using High Performance Liquid Chromatography
Young-SunKim, Dong-SeokYim, Dong-GunLee, Sang-BokLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 4 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.4 9 247-250 (4 pages)
A simple and sensitive assay method was developed for cefepime in human plasma using high performance liquid chromatography (HPLC). Cefepime and cefadroxil (the internal standard) were extracted from heparinized human plasma by simple deproteination with perchloric acid. The extract was injected into an Atlantis dC18 column (250⁓4.6 mm; particle size 5μm, Waters) and the column was eluted with methanol and 0.01 M dihydrogen phosphate at pH 3.0 (15：85 v：v) as a mobile phase at a flow... -
Physiological and Pharmacological Characterization of Glutamate and GABA Receptors in the Retina
Xiong-LiYang, YingShen, Ming-HuHan, TaoLu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.5 2 461-469 (9 pages)
Glutamate and γ-aminobutyric acid (GABA) are major excitatory and inhibitory neurotransmitters in the vertebrate retina, respectively. Using the whole-cell patch clamp technique and a rapid solution changer, glutamate and GABA receptors have been extensively investigated in carp retina. Glutamate receptors on both horizontal and amacrine cells may be an AMPA preferring subtype, which predominantly consists of flop splice variants. GABAA and GABAC receptors coexist in bipolar cells and they...
