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Peterson S, Maheras A, Wu B, Chavira J, Keiflin R. Sex differences in discrimination behavior and orbitofrontal engagement during context-gated reward prediction. eLife 2024; 12:RP93509. [PMID: 39046898 PMCID: PMC11268887 DOI: 10.7554/elife.93509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024] Open
Abstract
Animals, including humans, rely on contextual information to interpret ambiguous stimuli. Impaired context processing is a hallmark of several neuropsychiatric disorders, including schizophrenia, autism spectrum disorders, post-traumatic stress disorder, and addiction. While sex differences in the prevalence and manifestations of these disorders are well established, potential sex differences in context processing remain uncertain. Here, we examined sex differences in the contextual control over cue-evoked reward seeking and its neural correlates, in rats. Male and female rats were trained in a bidirectional occasion-setting preparation in which the validity of two auditory reward-predictive cues was informed by the presence, or absence, of a visual contextual feature (LIGHT: X+/DARK: X-/LIGHT: Y-/DARK: Y+). Females were significantly slower to acquire contextual control over cue-evoked reward seeking. However, once established, the contextual control over behavior was more robust in female rats; it showed less within-session variability (less influence of prior reward) and greater resistance to acute stress. This superior contextual control achieved by females was accompanied by an increased activation of the orbitofrontal cortex (OFC) compared to males. Critically, these behavioral and neural sex differences were specific to the contextual modulation process and not observed in simple, context-independent, reward prediction tasks. These results indicate a sex-biased trade-off between the speed of acquisition and the robustness of performance in the contextual modulation of cued reward seeking. The different distribution of sexes along the fast learning ↔ steady performance continuum might reflect different levels of engagement of the OFC, and might have implications for our understanding of sex differences in psychiatric disorders.
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Affiliation(s)
- Sophie Peterson
- Department of Psychological & Brain Sciences, University of California, Santa BarbaraSanta BarbaraUnited States
| | - Amanda Maheras
- Department of Molecular, Cellular & Developmental Biology, University of California, Santa BarbaraSanta BarbaraUnited States
| | - Brenda Wu
- Department of Psychological & Brain Sciences, University of California, Santa BarbaraSanta BarbaraUnited States
| | - Jose Chavira
- Department of Psychological & Brain Sciences, University of California, Santa BarbaraSanta BarbaraUnited States
| | - Ronald Keiflin
- Department of Psychological & Brain Sciences, University of California, Santa BarbaraSanta BarbaraUnited States
- Neuroscience Research Institute, University of California, Santa BarbaraSanta BarbaraUnited States
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Penha MA, Miot HA, Kasprzak M, Müller Ramos P. Oral Minoxidil vs Topical Minoxidil for Male Androgenetic Alopecia: A Randomized Clinical Trial. JAMA Dermatol 2024; 160:600-605. [PMID: 38598226 PMCID: PMC11007651 DOI: 10.1001/jamadermatol.2024.0284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 01/29/2024] [Indexed: 04/11/2024]
Abstract
Importance There has been increased interest in low-dose oral minoxidil for androgenetic alopecia (AGA) treatment. However, the efficacy of oral minoxidil for male AGA is yet to be evaluated in comparative therapeutic trials. Objective To compare the efficacy, safety, and tolerability of daily oral minoxidil, 5 mg, vs twice-daily topical minoxidil, 5%, for 24 weeks in the treatment of male AGA. Design, Setting, and Participants This double-blind, placebo-controlled randomized clinical trial was conducted at a single specialized clinic in Brazil. Eligible men with AGA aged 18 to 55 years classified using the Norwood-Hamilton scale as 3V, 4V, or 5V were included and randomized. Data were collected from January to December 2021, and data were analyzed from September 2022 to February 2023. Interventions Participants were randomized 1:1 into 2 groups: oral minoxidil, 5 mg, daily and topical placebo solution; or 1 mL of topical minoxidil, 5%, twice daily and oral placebo for 24 weeks. Main Outcomes and Measures The primary outcome was change in terminal hair density on the frontal and vertex regions of the scalp. The secondary outcomes were change in total hair density and photographic evaluation. Results Among 90 enrolled participants, 68 completed the study; of these, the mean (SD) age was 36.6 (7.8) years. A total of 33 participants were enrolled in the oral minoxidil group and 35 in the topical treatment group. Both groups were homogenous in terms of demographic data and AGA severity. For the frontal area, the mean change from baseline to week 24 between groups was 3.1 hairs per cm2 (95% CI, -18.2 to 21.5; P = .27) for terminal hair density and 2.6 hairs per cm2 (95% CI, -10.3 to 15.8; P = .32) for total hair density. For the vertex area, the mean change from baseline to week 24 was 23.4 hairs per cm2 (95% CI, -0.3 to 43.0; P = .09) for terminal density and 5.5 hairs per cm2 (95% CI, -12.5 to 23.5; P = .32) for total hair density. According to the photographic analysis, oral minoxidil was superior to topical minoxidil on the vertex (24%; 95% CI, 0 to 48; P = .04) but not on the frontal scalp (12%; 95% CI, -12 to 36; P = .24). The most common adverse effects in the oral minoxidil group were hypertrichosis (22 of 45 [49%]) and headache (6 of 45 [14%]). Conclusions and Relevance In this study, oral minoxidil, 5 mg, once per day for 24 weeks did not demonstrate superiority over topical minoxidil, 5%, twice per day in men with AGA. Trial Registration Brazilian Registry of Clinical Trials Identifier: RBR-252w9r.
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Affiliation(s)
- Mariana Alvares Penha
- Department of Dermatology, Faculty of Medicine of Botucatu, São Paulo State University (UNESP), Botucatu, Brazil
| | - Hélio Amante Miot
- Department of Dermatology, Faculty of Medicine of Botucatu, São Paulo State University (UNESP), Botucatu, Brazil
| | | | - Paulo Müller Ramos
- Department of Dermatology, Faculty of Medicine of Botucatu, São Paulo State University (UNESP), Botucatu, Brazil
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Li X, Wen K, Zhu L, Chen C, Yin T, Yang X, Zhao K, Zi Y, Zhang H, Luo X, Zhang H. Genome-wide identification and expression analysis of the Eriobotrya japonica TIFY gene family reveals its functional diversity under abiotic stress conditions. BMC Genomics 2024; 25:468. [PMID: 38745142 PMCID: PMC11092017 DOI: 10.1186/s12864-024-10375-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 05/03/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Plant-specific TIFY proteins are widely found in terrestrial plants and play important roles in plant adversity responses. Although the genome of loquat at the chromosome level has been published, studies on the TIFY family in loquat are lacking. Therefore, the EjTIFY gene family was bioinformatically analyzed by constructing a phylogenetic tree, chromosomal localization, gene structure, and adversity expression profiling in this study. RESULTS Twenty-six EjTIFY genes were identified and categorized into four subfamilies (ZML, JAZ, PPD, and TIFY) based on their structural domains. Twenty-four EjTIFY genes were irregularly distributed on 11 of the 17 chromosomes, and the remaining two genes were distributed in fragments. We identified 15 covariate TIFY gene pairs in the loquat genome, 13 of which were involved in large-scale interchromosomal segmental duplication events, and two of which were involved in tandem duplication events. Many abiotic stress cis-elements were widely present in the promoter region. Analysis of the Ka/Ks ratio showed that the paralogous homologs of the EjTIFY family were mainly subjected to purifying selection. Analysis of the RNA-seq data revealed that a total of five differentially expressed genes (DEGs) were expressed in the shoots under gibberellin treatment, whereas only one gene was significantly differentially expressed in the leaves; under both low-temperature and high-temperature stresses, there were significantly differentially expressed genes, and the EjJAZ15 gene was significantly upregulated under both low- and high-temperature stress. RNA-seq and qRT-PCR expression analysis under salt stress conditions revealed that EjJAZ2, EjJAZ4, and EjJAZ9 responded to salt stress in loquat plants, which promoted resistance to salt stress through the JA pathway. The response model of the TIFY genes in the jasmonic acid pathway under salt stress in loquat was systematically summarized. CONCLUSIONS These results provide a theoretical basis for exploring the characteristics and functions of additional EjTIFY genes in the future. This study also provides a theoretical basis for further research on breeding for salt stress resistance in loquat. RT-qPCR analysis revealed that the expression of one of the three EjTIFY genes increased and the expression of two decreased under salt stress conditions, suggesting that EjTIFY exhibited different expression patterns under salt stress conditions.
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Affiliation(s)
- Xulin Li
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China
| | - Ke Wen
- Key Laboratory of Biodiversity Conservation in Southwest China, National Forest and Grassland Administration, Southwest Forestry University, Kunming, 650224, China
| | - Ling Zhu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China
| | - Chaoying Chen
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China
| | - Tuo Yin
- Key Laboratory of Biodiversity Conservation in Southwest China, National Forest and Grassland Administration, Southwest Forestry University, Kunming, 650224, China
| | - Xiuyao Yang
- Key Laboratory of Biodiversity Conservation in Southwest China, National Forest and Grassland Administration, Southwest Forestry University, Kunming, 650224, China
| | - Ke Zhao
- Key Laboratory of Biodiversity Conservation in Southwest China, National Forest and Grassland Administration, Southwest Forestry University, Kunming, 650224, China
| | - Yinqiang Zi
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China
| | - Huiyun Zhang
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agriculture Sciences, Baoshan, 678000, China.
| | - Xinping Luo
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agriculture Sciences, Baoshan, 678000, China.
| | - Hanyao Zhang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, 650224, China.
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Liu Z, Qin Q, Zhang C, Xu X, Dai D, Lan M, Wang Y, Zhang J, Zhao D, Kong D, Qin T, Wu D, Gong X, Zhou X, Suhe A, Wang Z, Liu Z. Effects of nonsynonymous single nucleotide polymorphisms of the KIAA1217, SNTA1 and LTBP1 genes on the growth traits of Ujumqin sheep. Front Vet Sci 2024; 11:1382897. [PMID: 38756519 PMCID: PMC11097667 DOI: 10.3389/fvets.2024.1382897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 04/09/2024] [Indexed: 05/18/2024] Open
Abstract
Sheep body size can directly reflect the growth rates and fattening rates of sheep and is also an important index for measuring the growth performance of meat sheep. In this study, high-resolution resequencing data from four sheep breeds (Dorper sheep, Suffolk sheep, Ouessant sheep, and Shetland sheep) were analyzed. The nonsynonymous single nucleotide polymorphisms of three candidate genes (KIAA1217, SNTA1, and LTBP1) were also genotyped in 642 healthy Ujumqin sheep using MALDI-TOFMS and the genotyping results were associated with growth traits. The results showed that different genotypes of the KIAA1217 g.24429511T>C locus had significant effects on the chest circumferences of Ujumqin sheep. The SNTA1 g.62222626C>A locus had different effects on the chest depths, shoulder widths and rump widths of Ujumqin sheep. This study showed that these two sites can be used for marker-assisted selection, which will be beneficial for future precision molecular breeding.
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Affiliation(s)
- Zhichen Liu
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Qing Qin
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Chongyan Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Xiaolong Xu
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Dongliang Dai
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Mingxi Lan
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Yichuan Wang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Jingwen Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Dan Zhao
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Deqing Kong
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Tian Qin
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Danni Wu
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Xuedan Gong
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Xingyu Zhou
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Alatan Suhe
- East Ujumqin Banner Hersig Animal Husbandry Development Limited Liability Company, Xilin Gol League, Xilinhot, China
| | - Zhixin Wang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Mutton Sheep Genetics and Breeding, Ministry of Agriculture, Hohhot, China
- Goat Genetics and Breeding Engineering Technology Research Center, Hohhot, China
| | - Zhihong Liu
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Inner Mongolia Agricultural University, Hohhot, China
- Key Laboratory of Mutton Sheep Genetics and Breeding, Ministry of Agriculture, Hohhot, China
- Goat Genetics and Breeding Engineering Technology Research Center, Hohhot, China
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He X, Chen Y, Xia Y, Hong X, You H, Zhang R, Liang Z, Cui Q, Zhang S, Zhou M, Yang D. DNA methylation regulates biosynthesis of tanshinones and phenolic acids during growth of Salvia miltiorrhiza. PLANT PHYSIOLOGY 2024; 194:2086-2100. [PMID: 37879117 DOI: 10.1093/plphys/kiad573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/09/2023] [Accepted: 10/09/2023] [Indexed: 10/27/2023]
Abstract
DNA methylation plays a crucial role in the regulation of plant growth and the biosynthesis of secondary metabolites. Danshen (Salvia miltiorrhiza) is a valuable Chinese herbal medicine commonly used to treat cardiovascular diseases; its active ingredients are tanshinones and phenolic acids, which primarily accumulate in roots. Here, we conducted a targeted metabolic analysis of S. miltiorrhiza roots at 3 distinct growth stages: 40 d old (r40), 60 d old (r60), and 90 d old (r90). The contents of tanshinones (cryptotanshinone, tanshinone I, tanshinone IIA, and rosmariquinone) and phenolic acids (rosmarinic acid and salvianolic acid B) gradually increased during plant development. Whole-genome bisulfite sequencing and transcriptome sequencing of roots at the 3 growth stages revealed an increased level of DNA methylation in the CHH context (H represents A, T, or C) context at r90 compared with r40 and r60. Increased DNA methylation levels were associated with elevated expression of various genes linked to epigenetic regulations, including CHROMOMETHYLASE2 (SmCMT2), Decrease in DNA Methylation 1 (SmDDM1), Argonaute 4 (SmAGO4), and DOMAINS REARRANGED METHYLTRANSFERASE 1 (SmDRM1). Moreover, expression levels of many genes involved in tanshinone and salvianolic acid biosynthesis, such as copalyldiphosphate synthase 5 (SmCPS5), cytochrome P450-related enzyme (SmCYP71D464), geranylgeranyl diphosphate synthase (SmGGPPS1), geranyl diphosphate synthase (SmGPPS), hydroxyphenylpyruvate reductase (SmHPPR), and hydroxyphenylpyruvate dioxygenase (SmHPPD), were altered owing to hyper-methylation, indicating that DNA methylation plays an important role in regulating tanshinone and phenolic acid accumulation. Our data shed light on the epigenetic regulation of root growth and the biosynthesis of active ingredients in S. miltiorrhiza, providing crucial clues for further improvement of active compound production via molecular breeding in S. miltiorrhiza.
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Affiliation(s)
- Xinyu He
- College of Life Sciences and Medicine, Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yiwen Chen
- College of Life Sciences and Medicine, Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yuting Xia
- College of Life Sciences and Medicine, Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xinyu Hong
- College of Life Sciences and Medicine, Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Huaqian You
- College of Life Sciences and Medicine, Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Rui Zhang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zongsuo Liang
- College of Life Sciences and Medicine, Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Qi Cui
- Laboratory of Ornamental Plants, Department of Landscape Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shuncang Zhang
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Ming Zhou
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dongfeng Yang
- College of Life Sciences and Medicine, Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
- Shaoxing Biomedical Research Institute of Zhejiang Sci-Tech University Co., Ltd, Zhejiang Engineering Research Center for the Development Technology of Medicinal and Edible Homologous Health Food, Shaoxing 312075, China
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Galekop MMJ, Uyl-de Groot C, Redekop WK. Economic Evaluation of a Personalized Nutrition Plan Based on Omic Sciences Versus a General Nutrition Plan in Adults with Overweight and Obesity: A Modeling Study Based on Trial Data in Denmark. PHARMACOECONOMICS - OPEN 2024; 8:313-331. [PMID: 38113009 PMCID: PMC10883904 DOI: 10.1007/s41669-023-00461-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/26/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND Since there is no diet that is perfect for everyone, personalized nutrition approaches are gaining popularity to achieve goals such as the prevention of obesity-related diseases. However, appropriate choices about funding and encouraging personalized nutrition approaches should be based on sufficient evidence of their effectiveness and cost-effectiveness. In this study, we assessed whether a newly developed personalized plan (PP) could be cost-effective relative to a non-personalized plan in Denmark. METHODS Results of a 10-week randomized controlled trial were combined with a validated obesity economic model to estimate lifetime cost-effectiveness. In the trial, the intervention group (PP) received personalized home-delivered meals based on metabolic biomarkers and personalized behavioral change messages. In the control group these meals and messages were not personalized. Effects were measured in body mass index (BMI) and quality of life (EQ-5D-5L). Costs [euros (€), 2020] were considered from a societal perspective. Lifetime cost-effectiveness was assessed using a multi-state Markov model. Univariate, probabilistic sensitivity, and scenario analyses were performed. RESULTS In the trial, no significant differences were found in the effectiveness of PP compared with control, but wide confidence intervals (CIs) were seen [e.g., BMI (-0.07, 95% CI -0.51, 0.38)]. Lifetime estimates showed that PP increased costs (€520,102 versus €518,366, difference: €1736) and quality-adjusted life years (QALYs) (15.117 versus 15.106, difference: 0.011); the incremental cost-utility ratio (ICUR) was therefore high (€158,798 to gain one QALY). However, a 20% decrease in intervention costs would reduce the ICUR (€23,668 per QALY gained) below an unofficial gross domestic product (GDP)-based willingness-to-pay threshold (€47,817 per QALY gained). CONCLUSION On the basis of the willingness-to-pay threshold and the non-significant differences in short-term effectiveness, PP may not be cost-effective. However, scaling up the intervention would reduce the intervention costs. Future studies should be larger and/or longer to reduce uncertainty about short-term effectiveness. TRIAL REGISTRATION NUMBER ClinicalTrials.gov registry (NCT04590989).
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Affiliation(s)
| | - Carin Uyl-de Groot
- Erasmus Universiteit Rotterdam, Erasmus School of Health Policy and Management, Rotterdam, The Netherlands
| | - William Ken Redekop
- Erasmus Universiteit Rotterdam, Erasmus School of Health Policy and Management, Rotterdam, The Netherlands
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Benke C, Wallenfels LM, Bleichhardt GM, Melzig CA. Health anxiety amplifies fearful responses to illness-related imagery. Sci Rep 2024; 14:4345. [PMID: 38388793 PMCID: PMC10883981 DOI: 10.1038/s41598-024-54985-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/19/2024] [Indexed: 02/24/2024] Open
Abstract
Severe health anxiety (HA) is characterized by excessive worry and anxiety about one's health, often accompanied by distressing intrusive imagery of signs of a serious illness or potentially receiving bad news about having a life-threatening disease. However, the emotional responses to these illness-related mental images in relation to HA have not been fully elucidated. Emotional responses to mental imagery of 142 participants were assessed in a well-controlled script-driven imagery task, systematically comparing emotional responses to illness-related imagery with neutral and standard fear imagery. The results revealed that participants reported higher anxiety, aversion, emotional arousal, and a stronger avoidance tendency during imagery of fear and illness-related scenes compared to neutral scenes. Importantly, the emotional modulation varied by the level of HA, indicating that individuals with higher HA experienced stronger emotional responses to illness-related imagery. This association between HA and fearful imagery could not be better accounted for by other psychological factors such as trait anxiety, anxiety sensitivity, somatic symptom severity, or symptoms of depression and anxiety. Fearful responding to standard threat material was not associated with HA. The present findings highlight the importance of considering fear responding to mental imagery in understanding and addressing HA.
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Affiliation(s)
- Christoph Benke
- Department of Psychology, Clinical Psychology and Psychotherapy, Philipps University of Marburg, Gutenbergstraße 18, 35032, Marburg, Germany.
| | - Laura-Marie Wallenfels
- Department of Psychology, Clinical Psychology and Psychotherapy, Philipps University of Marburg, Gutenbergstraße 18, 35032, Marburg, Germany
| | - Gaby M Bleichhardt
- Department of Psychology, Clinical Psychology and Psychotherapy, Philipps University of Marburg, Gutenbergstraße 18, 35032, Marburg, Germany
| | - Christiane A Melzig
- Department of Psychology, Clinical Psychology and Psychotherapy, Philipps University of Marburg, Gutenbergstraße 18, 35032, Marburg, Germany
- Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Giessen, Germany
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Yang G, Li M, Yang Q, Zhai X, Halima J, Hu Q, Lei C, Dang R. Bta-miR-127 inhibits secretion, proliferation and promotes apoptosis by targeting ITGA6 in bovine Sertoli cell. Int J Biol Macromol 2023; 253:126838. [PMID: 37714242 DOI: 10.1016/j.ijbiomac.2023.126838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/16/2023] [Accepted: 09/06/2023] [Indexed: 09/17/2023]
Abstract
Sertoli cell (SC) play a critical role in the spermatogenesis process involved in male fecundity and reproductive potential. SC development is regulated by microRNAs (miRNAs). However, the effect and molecular mechanism of miRNAs and target genes on bovine immature SC remains poorly understood. In this study, bta-miR-127 overexpression in SC inhibited cell secretion, proliferation, cell viability, and S-phase cells number. However, inhibition of bta-miR-127 had the opposite effect. An over-expression of bta-miR-127 significantly promotes SC apoptosis, and bta-miR-127 inhibition can significantly inhibit this process. These results reveal that bta-miR-127 is an inhibitor of SC proliferation and secretion. A combination of transcriptome sequencing, bioinformatics analysis, and dual-luciferase reporter assay showed that ITGA6 was targeted by bta-miR-127. The small interfering RNA of ITGA6 (si-ITGA6) inhibits SC proliferation and secretion, as well as promotes apoptosis. The SC proliferation and secretion marker genes, cell viability, and S phase cell number in co-transfected si-ITGA6 + miR-127 inhibitor was significantly lower than those of the bta-miR-127 inhibitor group. These results further confirmed that bta-miR-127 targeting ITGA6 inhibits the SC proliferation and secretion, and promotes SC apoptosis. These findings proposed a novel miRNA (bta-miR-127) that impeded bovine SC proliferation and promoted SC apoptosis through downregulation of ITGA6.
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Affiliation(s)
- Ge Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Mei Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Qiwen Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Xiangqin Zhai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Jafari Halima
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Qiaoyan Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Chuzhao Lei
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Ruihua Dang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China.
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Tie W, Ge F. Lymphoid-specific helicase inhibits cervical cancer cells ferroptosis by promoting Nrf2 expression. PeerJ 2023; 11:e16451. [PMID: 38047020 PMCID: PMC10691353 DOI: 10.7717/peerj.16451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 10/23/2023] [Indexed: 12/05/2023] Open
Abstract
Background Cervical cancer is a major cause of morbidity and mortality in women worldwide. The underlying mechanisms of its progression are not well understood. In this study, we investigated the role of lymphoid-specific helicase (HELLS) in cervical cancer. Methods We measured HELLS expression in cervical cancer and assessed its function using gain- and loss-of-function experiments. Cell viability was measured using the Cell Counting Kit-8 (CCK8 ) assay, and cell proliferation was analyzed using colony formation and EdU assays. Results We found that HELLS was significantly increased in cervical cancer and that its overexpression promoted cell viability (P < 0.01) and colony formation (P < 0.001). In contrast, si-HELLS suppressed these effects. Moreover, HELLS overexpression inhibited cell death induced by the ferroptosis inducer erastin (P < 0.01). Mechanistically, we found that HELLS promoted cervical cancer proliferation by regulating nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated ferroptosis. Conclusion Our data suggest that HELLS promotes cervical cancer proliferation by inhibiting Nrf2 expression. Therefore, HELLS knockdown may be an effective treatment for cervical cancer.
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Affiliation(s)
- Weiwei Tie
- Department of Gynecology, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Fenfen Ge
- Department of Gynecology, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
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Iglesias AG, Chiu AS, Wong J, Campus P, Li F, Liu ZN, Bhatti JK, Patel SA, Deisseroth K, Akil H, Burgess CR, Flagel SB. Inhibition of Dopamine Neurons Prevents Incentive Value Encoding of a Reward Cue: With Revelations from Deep Phenotyping. J Neurosci 2023; 43:7376-7392. [PMID: 37709540 PMCID: PMC10621773 DOI: 10.1523/jneurosci.0848-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 08/08/2023] [Accepted: 09/08/2023] [Indexed: 09/16/2023] Open
Abstract
The survival of an organism is dependent on its ability to respond to cues in the environment. Such cues can attain control over behavior as a function of the value ascribed to them. Some individuals have an inherent tendency to attribute reward-paired cues with incentive motivational value, or incentive salience. For these individuals, termed sign-trackers, a discrete cue that precedes reward delivery becomes attractive and desirable in its own right. Prior work suggests that the behavior of sign-trackers is dopamine-dependent, and cue-elicited dopamine in the NAc is believed to encode the incentive value of reward cues. Here we exploited the temporal resolution of optogenetics to determine whether selective inhibition of ventral tegmental area (VTA) dopamine neurons during cue presentation attenuates the propensity to sign-track. Using male tyrosine hydroxylase (TH)-Cre Long Evans rats, it was found that, under baseline conditions, ∼84% of TH-Cre rats tend to sign-track. Laser-induced inhibition of VTA dopamine neurons during cue presentation prevented the development of sign-tracking behavior, without affecting goal-tracking behavior. When laser inhibition was terminated, these same rats developed a sign-tracking response. Video analysis using DeepLabCutTM revealed that, relative to rats that received laser inhibition, rats in the control group spent more time near the location of the reward cue even when it was not present and were more likely to orient toward and approach the cue during its presentation. These findings demonstrate that cue-elicited dopamine release is critical for the attribution of incentive salience to reward cues.SIGNIFICANCE STATEMENT Activity of dopamine neurons in the ventral tegmental area (VTA) during cue presentation is necessary for the development of a sign-tracking, but not a goal-tracking, conditioned response in a Pavlovian task. We capitalized on the temporal precision of optogenetics to pair cue presentation with inhibition of VTA dopamine neurons. A detailed behavioral analysis with DeepLabCutTM revealed that cue-directed behaviors do not emerge without dopamine neuron activity in the VTA. Importantly, however, when optogenetic inhibition is lifted, cue-directed behaviors increase, and a sign-tracking response develops. These findings confirm the necessity of dopamine neuron activity in the VTA during cue presentation to encode the incentive value of reward cues.
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Affiliation(s)
- Amanda G Iglesias
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, Michigan 48104
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
| | - Alvin S Chiu
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, Michigan 48104
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
| | - Jason Wong
- College of Literature, Science, and the Arts, University of Michigan, Ann Arbor, Michigan 48104
| | - Paolo Campus
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
| | - Fei Li
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
| | - Zitong Nemo Liu
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
| | - Jasmine K Bhatti
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
| | - Shiv A Patel
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
| | - Karl Deisseroth
- Department of Bioengineering, Stanford University, Stanford, California 94305
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California 94305
- Howard Hughes Medical Institute, Stanford University, Stanford, California 94305
| | - Huda Akil
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan 48104
| | - Christian R Burgess
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
| | - Shelly B Flagel
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48104
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan 48104
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11
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Wang C, Bao R, Zhang H, Shang L, Wang H, Yang Z, Du C. Study on Potato Bud Cultivation Techniques in a Greenhouse in Spring. PLANTS (BASEL, SWITZERLAND) 2023; 12:3545. [PMID: 37896009 PMCID: PMC10610138 DOI: 10.3390/plants12203545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/29/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023]
Abstract
The species degeneration caused by traditional potato cultivation methods is becoming increasingly evident, and it is particularly important to study new potato cultivation methods. Sprout planting technology has the advantages of large reproductive capacity, fast growth speed, and simplified maintenance of cultivated crops. In this study, four disease-free potato varieties ('Fujin', 'Youjin', 'Zhongshu 4', and 'Feiwuruita') were treated with different parts (top bud, middle bud, and tail bud) and different bud lengths (10 cm, 15 cm, and 20 cm), and then potato sprout planting was carried out. A nutrient pot experiment was performed following a randomized complete block design (RCBD) with various replicates and a natural control (CK) treatment. By comprehensively measuring the emergence, chlorophyll content, net photosynthetic rate, dry matter distribution during the bulking period of blocks, and effect of growth and quality with bud direct seeding under both treatments, it was found that potato block top bud direct seeding cultivation is significantly superior to other parts. In terms of early maturity and yield statistics, the advantage of top bud cultivation in 'zhongshu 4' is most obvious; it reaches maturity an average of 14 days earlier, and the yield can be increased by 38.05%. Therefore, top bud direct seeding is more suitable for potato sprout planting technology. On this basis, the 20 cm and 15 cm bud length treatments of top buds were used for direct cultivation, and all the above indicators performed well. Among them, in the zhongshu 4 variety, the yields of 15 cm and 20 cm bud length treatments increased by 41.78% and 38.05%, the growth rates of commercial potatoes increased by 6% and 6.9%, respectively, and the effects were the most obvious. In conclusion, the deep research and application of potato sprouting technology has high utilization value for improving potato yield and quality and has guiding significance for greenhouse potato cultivation in early spring.
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Affiliation(s)
| | | | | | | | | | | | - Chong Du
- College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China; (C.W.); (R.B.); (H.Z.); (L.S.); (H.W.); (Z.Y.)
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12
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Zhang Y, Qi S, Liu L, Bao Q, Wu T, Liu W, Zhang Y, Zhao W, Xu Q, Chen G. Genetic Diversity Analysis and Breeding of Geese Based on the Mitochondrial ND6 Gene. Genes (Basel) 2023; 14:1605. [PMID: 37628656 PMCID: PMC10454708 DOI: 10.3390/genes14081605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/07/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
To explore the differences in body-weight traits of five goose breeds and analyze their genetic diversity and historical dynamics, we collected body-weight data statistics and used Sanger sequencing to determine the mitochondrial DNA of 100 samples of five typical goose breeds in China and abroad. The results indicated that Lion-Head, Hortobagy, and Yangzhou geese have great breeding potential for body weight. Thirteen polymorphic sites were detected in the corrected 505 bp sequence of the mitochondrial DNA (mtDNA) ND6 gene, accounting for approximately 2.57% of the total number of sites. The guanine-cytosine (GC) content (51.7%) of the whole sequence was higher than the adenine-thymine (AT) content (48.3%), showing a certain GC base preference. There were 11 haplotypes among the five breeds, including one shared haplotype. We analyzed the differences in the distribution of base mismatches among the five breeds and conducted Tajima's D and Fu's Fs neutral tests on the historical dynamics of the populations. The distribution of the mismatch difference presented an unsmooth single peak and the Tajima's D value of the neutral test was negative (D < 0) and reached a significant level, which proves that the population of the three species had expanded; the Lion-Head goose population tends to be stable. The genetic diversity of Lion-Head, Zhedong White, Yangzhou, and Taihu geese was equal to the average diversity of Chinese goose breeds. The Hortobagy goose is a foreign breed with differences in mating line breeding and hybrid advantage utilization.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Guohong Chen
- Key Laboratory for Evaluation and Utilization of Poultry Genetic Resources of Ministry of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225009, China; (Y.Z.); (S.Q.); (L.L.); (Q.B.); (T.W.); (W.L.); (Y.Z.); (W.Z.); (Q.X.)
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13
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Lean RE, Gerstein ED, Smyser TA, Smyser CD, Rogers CE. Socioeconomic disadvantage and parental mood/affective problems links negative parenting and executive dysfunction in children born very preterm. Dev Psychopathol 2023; 35:1092-1107. [PMID: 34725016 PMCID: PMC9058043 DOI: 10.1017/s0954579421000961] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Poverty increases the risk of poorer executive function (EF) in children born full-term (FT). Stressors associated with poverty, including variability in parenting behavior, may explain links between poverty and poorer EF, but this remains unclear for children born very preterm (VPT). We examine socioeconomic and parental psychosocial adversity on parenting behavior, and whether these factors independently or jointly influence EF in children born VPT. At age five years, 154 children (VPT = 88, FT = 66) completed parent-child interaction and EF tasks. Parental sensitivity, intrusiveness, cognitive stimulation, and positive and negative regard were coded with the Parent-Child Interaction Rating Scale. Socioeconomic adversity spanned maternal demographic stressors, Income-to-Needs ratio, and Area Deprivation Index. Parents completed measures of depression, anxiety, inattention/hyperactivity, parenting stress, and social-communication interaction (SCI) problems. Parental SCI problems were associated with parenting behavior in parents of children born VPT, whereas socioeconomic adversity was significant in parents of FT children. Negative parenting behaviors, but not positive parenting behaviors, were related to child EF. This association was explained by parental depression/anxiety symptoms and socioeconomic adversity. Results persisted after adjustment for parent and child IQ. Findings may inform research on dyadic interventions that embed treatment for parental mood/affective symptoms and SCI problems to improve childhood EF.
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Affiliation(s)
- Rachel E Lean
- Psychiatry, Washington University School of Medicine, St. Louis, USA
| | - Emily D Gerstein
- Psychological Sciences, University Missouri-St. Louis, St. Louis, USA
| | - Tara A Smyser
- Psychiatry, Washington University School of Medicine, St. Louis, USA
| | - Christopher D Smyser
- Neurology, Washington University School of Medicine, St. Louis, USA
- Radiology, Washington University School of Medicine, St. Louis, USA
- Pediatrics, Washington University School of Medicine, St. Louis, USA
| | - Cynthia E Rogers
- Psychiatry, Washington University School of Medicine, St. Louis, USA
- Pediatrics, Washington University School of Medicine, St. Louis, USA
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14
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Ukita R, Stokes JW, Wu WK, Patel YJ, Talackine JR, Cardwell N, Benson C, Lefevre RJ, Eagle S, Demarest C, Simonds E, Tipograf Y, Cortelli M, Skoog DJ, Cook K, Rosenzweig EB, Bacchetta M. Large animal preclinical investigation into the optimal extracorporeal life support configuration for pulmonary hypertension and right ventricular failure. J Heart Lung Transplant 2023; 42:859-867. [PMID: 36435685 PMCID: PMC10163172 DOI: 10.1016/j.healun.2022.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 10/04/2022] [Accepted: 10/31/2022] [Indexed: 11/08/2022] Open
Abstract
INTRODUCTION Right ventricular failure (RVF) is a major cause of mortality in pulmonary hypertension (PH). Mechanical circulatory support holds promise for patients with medically refractory PH, but there are no clinical devices for long-term right ventricular (RV) support. Investigations into optimal device parameters and circuit configurations for PH-induced RVF (PH-RVF) are needed. METHODS Eleven sheep underwent previously published chronic PH model. We then evaluated a low-profile, ventricular assist device (VAD)-quality pump combined with a novel low-resistance membrane oxygenator (Pulmonary Assist Device, PAD) under one of four central cannulation strategies: right atrium-to-left atrium (RA-LA, N = 3), RA-to-pulmonary artery (RA-PA, N=3), pumpless pulmonary artery-to-left atrium (PA-LA, N = 2), and RA-to-ascending aorta (RA-Ao, N = 3). Acute-on-chronic RVF (AoC RVF) was induced, and mechanical support was provided for up to 6 hours at blood flow rates of 1 to 3 liter/min. Circuit parameters, physiologic, hemodynamic, and echocardiography data were collected. RESULTS The RA-LA configuration achieved blood flow of 3 liter/min. Meanwhile, RA-PA and RA-Ao faced challenges maintaining 3 liter/min of flow due to higher circuit afterload. Pumpless PA-LA was flow-limited due to anatomical limitations inherent to this animal model. RA-LA and RA-Ao demonstrated serial RV unloading with increasing circuit flow, while RA-PA did not. RA-LA also improved left ventricular (LV) and septal geometry by echocardiographic assessment and had the lowest inotropic dependence. CONCLUSION RA-LA and RA-Ao configurations unload the RV, while RA-LA also lowers pump speed and inotropic requirements, and improves LV mechanics. RA-PA provide inferior support for PH-RVF, while an alternate animal model is needed to evaluate PA-LA.
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Affiliation(s)
- Rei Ukita
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - John W Stokes
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - W Kelly Wu
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Yatrik J Patel
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jennifer R Talackine
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Nancy Cardwell
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Clayne Benson
- Department of Anesthesia, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Ryan J Lefevre
- Department of Anesthesia, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Susan Eagle
- Department of Anesthesia, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Caitlin Demarest
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Elizabeth Simonds
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Yuliya Tipograf
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Michael Cortelli
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - David J Skoog
- Department of Biomedical Engineering, Advanced Respiratory Technologies LLC, Pittsburgh, Pennsylvania
| | - Keith Cook
- Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - Erika B Rosenzweig
- Department of Pediatrics, Columbia University Medical Center, New York, New York
| | - Matthew Bacchetta
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee.
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15
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Muhammad LN. Guidelines for repeated measures statistical analysis approaches with basic science research considerations. J Clin Invest 2023; 133:171058. [PMID: 37259921 DOI: 10.1172/jci171058] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
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16
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Trindade de Almeida AR, Marques ERMC, Contin LA, Trindade de Almeida C, Muniz M. Efficacy and Tolerability of Hyperdiluted Calcium Hydroxylapatite (Radiesse) for Neck Rejuvenation: Clinical and Ultrasonographic Assessment. Clin Cosmet Investig Dermatol 2023; 16:1341-1349. [PMID: 37255625 PMCID: PMC10226485 DOI: 10.2147/ccid.s407561] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 05/13/2023] [Indexed: 06/01/2023]
Abstract
Background The subdermal injection of calcium hydroxylapatite (CaHA) can improve the mechanical properties of the skin, providing immediate correction and stimulating the endogenous production of collagen, elastin, angiogenesis, and dermal cell proliferation; however, few studies have examined the neck region. Purpose This study assessed the clinical and ultrasonographic improvement induced by two sessions of subdermal injection of hyperdiluted (1:4) CaHA for neck rejuvenation in 22 women. Patients and Methods A quasi-experimental longitudinal trial (before and after) was performed by enrolling 22 adult women with mild and moderate neck aging (grades 1 and 2) on Merz Neck Volume Scale at rest (laxity) and Neck Horizontal Lines. They were submitted to two sessions of subdermal hyperdiluted CaHA (D0 and D45) treatments and assessed clinically and ultrasonographically at D0, D45, and D120. The main outcomes were the blinded photographic assessment (Merz scales of neck laxity and horizontal lines), dermal thickness (at three points), and the GAIS (Global Aesthetic Improvement Scale) score. Results The mean (SD) age was 43.5 (5.6) years. At the inclusion, the Merz scores for neck laxity were mild for 27% and moderate for 73% of participants, and the Merz scores for necklines were mild for 32% and moderate for 68%. At D120, scores decreased in 86% (95% CI 68-99%) of the participants by at least one degree on the necklines scale and in 82% (95% CI 73-90%) for neck laxity. According to the GAIS, 91% (95% CI 77-99%) of the participants evidenced improvement at D120. The mean dermal thickness increased by 15% (95% CI 8-21%) at D120. No severe adverse effects were recorded, and high satisfaction was reported by 82% of the participants. Conclusion Two sessions of subdermal hyperdiluted CaHA were well-tolerated and improved necklines, neck laxity, and dermal thickness in adult women with mild and moderate cervical aging.
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Affiliation(s)
| | | | - Letícia Arsie Contin
- Hospital do Servidor Público Municipal, São Paulo, SP, Brazil
- For Trials Pesquisa Clínica, São Paulo, SP, Brazil
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17
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Iglesias AG, Chiu AS, Wong J, Campus P, Li F, Liu Z(N, Patel SA, Deisseroth K, Akil H, Burgess CR, Flagel SB. Inhibition of dopamine neurons prevents incentive value encoding of a reward cue: With revelations from deep phenotyping. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.03.539324. [PMID: 37205506 PMCID: PMC10187226 DOI: 10.1101/2023.05.03.539324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The survival of an organism is dependent on their ability to respond to cues in the environment. Such cues can attain control over behavior as a function of the value ascribed to them. Some individuals have an inherent tendency to attribute reward-paired cues with incentive motivational value, or incentive salience. For these individuals, termed sign-trackers, a discrete cue that precedes reward delivery becomes attractive and desirable in its own right. Prior work suggests that the behavior of sign-trackers is dopamine-dependent, and cue-elicited dopamine in the nucleus accumbens is believed to encode the incentive value of reward cues. Here we exploited the temporal resolution of optogenetics to determine whether selective inhibition of ventral tegmental area (VTA) dopamine neurons during cue presentation attenuates the propensity to sign-track. Using male tyrosine hydroxylase (TH)-Cre Long Evans rats it was found that, under baseline conditions, ∼84% of TH-Cre rats tend to sign-track. Laser-induced inhibition of VTA dopamine neurons during cue presentation prevented the development of sign-tracking behavior, without affecting goal-tracking behavior. When laser inhibition was terminated, these same rats developed a sign-tracking response. Video analysis using DeepLabCut revealed that, relative to rats that received laser inhibition, rats in the control group spent more time near the location of the reward cue even when it was not present and were more likely to orient towards and approach the cue during its presentation. These findings demonstrate that cue-elicited dopamine release is critical for the attribution of incentive salience to reward cues. Significance Statement Activity of dopamine neurons in the ventral tegmental area (VTA) during cue presentation is necessary for the development of a sign-tracking, but not a goal-tracking, conditioned response in a Pavlovian task. We capitalized on the temporal precision of optogenetics to pair cue presentation with inhibition of VTA dopamine neurons. A detailed behavioral analysis with DeepLabCut revealed that cue-directed behaviors do not emerge without VTA dopamine. Importantly, however, when optogenetic inhibition is lifted, cue-directed behaviors increase, and a sign-tracking response develops. These findings confirm the necessity of VTA dopamine during cue presentation to encode the incentive value of reward cues.
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Affiliation(s)
- Amanda G. Iglesias
- Neuroscience Graduate Program, University of Michigan, Ann Arbor 48104, Michigan
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor 48104, Michigan
| | - Alvin S. Chiu
- Neuroscience Graduate Program, University of Michigan, Ann Arbor 48104, Michigan
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor 48104, Michigan
| | - Jason Wong
- College of Literature, Science, and the Arts, University of Michigan, Ann Arbor 48104, Michigan
| | - Paolo Campus
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor 48104, Michigan
| | - Fei Li
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor 48104, Michigan
| | - Zitong (Nemo) Liu
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor 48104, Michigan
| | - Shiv A. Patel
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor 48104, Michigan
| | - Karl Deisseroth
- Department of Bioengineering, Stanford University, Stanford 94305, California
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford 94305, California
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford 94305, California
- Howard Hughes Medical Institute, Stanford University, Stanford 94305, California
| | - Huda Akil
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor 48104, Michigan
- Department of Psychiatry, University of Michigan, Ann Arbor 48104, Michigan
| | - Christian R. Burgess
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor 48104, Michigan
| | - Shelly B. Flagel
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor 48104, Michigan
- Department of Psychiatry, University of Michigan, Ann Arbor 48104, Michigan
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18
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Szeska C, Mohrmann H, Hamm AO. Facilitated extinction but impaired extinction recall by eye movement manipulation in humans - Indications for action mechanisms and the applicability of eye movement desensitization. Int J Psychophysiol 2023; 184:64-75. [PMID: 36586670 DOI: 10.1016/j.ijpsycho.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/16/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022]
Abstract
Eye movement desensitization and reprocessing (EMDR) therapy utilizes the manipulation of eye movements to reduce affective distress during fear-exposure. Animal research recently suggested a potential neural mechanism underlying these effects, by which increased activity of the superior colliculus (SC), mediating visual attention, increases the inhibition of the basolateral amygdala (BLA), mediating defensive plasticity. We tested such mechanism in forty healthy humans using a multiple-day single-cue fear conditioning and extinction paradigm. The activity of the SC during extinction was experimentally manipulated by eye movements, as half of the participants executed saccadic eye movements (n = 20; major SC involvement), while the other half executed smooth eye pursuits (n = 20; minor SC involvement). Amygdala-mediated fear-potentiated startle responses and fear bradycardia, as well as threat expectancy was analyzed. Saccadic eye movements facilitated the extinction of fear bradycardia and fear-potentiated startle responses. Higher saccadic accuracy and range correlated with reduced fear-potentiated startle. However, during extinction recall, fear-potentiated startle and fear bradycardia resurged and partly reached levels obtained after fear acquisition. Threat expectancy was not affected by different eye movements and was not elevated during extinction recall. Within limitations, results support an inhibitory SC-BLA pathway in humans by which eye movements may reduce low-level defensive responding, but not threat expectancy. Yet, manipulating eye movements during extinction learning seems to impair extinction recall for behavioral and physiological defensive response indices. Thus, increasing SC activity might enhance initial efficacy of exposure treatment, but additional strategies seem necessary for sustained fear attenuation.
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Affiliation(s)
- Christoph Szeska
- University of Greifswald, Department of Physiological and Clinical Psychology / Psychotherapy, Franz-Mehring-Strasse 47, 17487 Greifswald, Germany.
| | - Heino Mohrmann
- University of Greifswald, Department of Physiological and Clinical Psychology / Psychotherapy, Franz-Mehring-Strasse 47, 17487 Greifswald, Germany
| | - Alfons O Hamm
- University of Greifswald, Department of Physiological and Clinical Psychology / Psychotherapy, Franz-Mehring-Strasse 47, 17487 Greifswald, Germany
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19
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Sydney-Smith JD, Koltchev AM, Moon LDF, Warren PM. Delayed viral vector mediated delivery of neurotrophin-3 improves skilled hindlimb function and stability after thoracic contusion. Exp Neurol 2023; 360:114278. [PMID: 36455639 DOI: 10.1016/j.expneurol.2022.114278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/07/2022] [Accepted: 11/19/2022] [Indexed: 11/30/2022]
Abstract
Intramuscular injection of an Adeno-associated viral vector serotype 1 (AAV1) encoding Neurotrophin-3 (NT3) into hindlimb muscles 24 h after a severe T9 spinal level contusion in rats has been shown to induce lumbar spinal neuroplasticity, partially restore locomotive function and reduce spasms during swimming. Here we investigate whether a targeted delivery of NT3 to lumbar and thoracic motor neurons 48 h following a severe contusive injury aids locomotive recovery in rats. AAV1-NT3 was injected bilaterally into the tibialis anterior, gastrocnemius and rectus abdominus muscles 48-h following trauma, persistently elevating serum levels of the neurotrophin. NT3 modestly improved trunk stability, accuracy of stepping during skilled locomotion, and alternation of the hindlimbs during swimming, but it had no effect on gross locomotor function in the open field. The number of vGlut1+ boutons, likely arising from proprioceptive afferents, on gastrocnemius α-motor neurons was increased after injury but normalised following NT3 treatment, suggestive of a mechanism in which functional benefits may be mediated through proprioceptive feedback. Ex vivo MRI revealed substantial loss of grey and white matter at the lesion epicentre but no effect of delayed NT3 treatment to induce neuroprotection. Lower body spasms and hyperreflexia of an intrinsic paw muscle were not reliably induced in this severe injury model suggesting a more complex anatomical or physiological cause to their induction. We have shown that delayed intramuscular AAV-NT3 treatment can promote recovery in skilled stepping and coordinated swimming, supporting a role for NT3 as a therapeutic strategy for spinal injuries potentially through modulation of somatosensory feedback.
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Affiliation(s)
- Jared D Sydney-Smith
- The Wolfson Centre for Age-Related Diseases, Guy's Campus, King's College London, London Bridge, London SE1 1UL, UK
| | - Alice M Koltchev
- The Wolfson Centre for Age-Related Diseases, Guy's Campus, King's College London, London Bridge, London SE1 1UL, UK
| | - Lawrence D F Moon
- The Wolfson Centre for Age-Related Diseases, Guy's Campus, King's College London, London Bridge, London SE1 1UL, UK
| | - Philippa M Warren
- The Wolfson Centre for Age-Related Diseases, Guy's Campus, King's College London, London Bridge, London SE1 1UL, UK.
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20
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Pekkarinen PT, Carbone F, Minetti S, Ramoni D, Ristagno G, Latini R, Wihersaari L, Blennow K, Zetterberg H, Toppila J, Jakkula P, Reinikainen M, Montecucco F, Skrifvars MB. Markers of neutrophil mediated inflammation associate with disturbed continuous electroencephalogram after out of hospital cardiac arrest. Acta Anaesthesiol Scand 2023; 67:94-103. [PMID: 36053856 PMCID: PMC10087484 DOI: 10.1111/aas.14145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/06/2022] [Accepted: 08/17/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Achieving an acceptable neurological outcome in cardiac arrest survivors remains challenging. Ischemia-reperfusion injury induces inflammation, which may cause secondary neurological damage. We studied the association of ICU admission levels of inflammatory biomarkers with disturbed 48-hour continuous electroencephalogram (cEEG), and the association of the daily levels of these markers up to 72 h with poor 6-month neurological outcome. METHODS This is an observational, post hoc sub-study of the COMACARE trial. We measured serum concentrations of procalcitonin (PCT), high-sensitivity C-reactive protein (hsCRP), osteopontin (OPN), myeloperoxidase (MPO), resistin, and proprotein convertase subtilisin/kexin type 9 (PCSK9) in 112 unconscious, mechanically ventilated ICU-treated adult OHCA survivors with initial shockable rhythm. We used grading of 48-hour cEEG monitoring as a measure for the severity of the early neurological disturbance. We defined 6-month cerebral performance category (CPC) 1-2 as good and CPC 3-5 as poor long-term neurological outcome. We compared the prognostic value of biomarkers for 6-month neurological outcome to neurofilament light (NFL) measured at 48 h. RESULTS Higher OPN (p = .03), MPO (p < .01), and resistin (p = .01) concentrations at ICU admission were associated with poor grade 48-hour cEEG. Higher levels of ICU admission OPN (OR 3.18; 95% CI 1.25-8.11 per ln[ng/ml]) and MPO (OR 2.34; 95% CI 1.30-4.21) were independently associated with poor 48-hour cEEG in a multivariable logistic regression model. Poor 6-month neurological outcome was more common in the poor cEEG group (63% vs. 19% p < .001, respectively). We found a significant fixed effect of poor 6-month neurological outcome on concentrations of PCT (F = 7.7, p < .01), hsCRP (F = 4.0, p < .05), and OPN (F = 5.6, p < .05) measured daily from ICU admission to 72 h. However, the biomarkers did not have independent predictive value for poor 6-month outcome in a multivariable logistic regression model with 48-hour NFL. CONCLUSION Elevated ICU admission levels of OPN and MPO predicted disturbances in cEEG during the subsequent 48 h after cardiac arrest. Thus, they may provide early information about the risk of secondary neurological damage. However, the studied inflammatory markers had little value for long-term prognostication compared to 48-hour NFL.
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Affiliation(s)
- Pirkka T Pekkarinen
- Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Federico Carbone
- Department of Internal Medicine, IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, Genoa, Italy.,First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Silvia Minetti
- Department of Internal Medicine, IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, Genoa, Italy.,First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Davide Ramoni
- Department of Internal Medicine, IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, Genoa, Italy.,First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Giuseppe Ristagno
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Department of Anesthesiology, Intensive Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Roberto Latini
- Cardiovascular Medicine, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
| | - Lauri Wihersaari
- Department of Anaesthesiology and Intensive Care, Kuopio University Hospital and University of Eastern Finland, Kuopio, Finland
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden.,Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, UK.,UK Dementia Research Institute at UCL, London, UK.,Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China
| | - Jussi Toppila
- Department of Clinical Neurophysiology, Medical Imaging Center, Helsinki University Central Hospital and Department of Clinical Neurosciences (Neurophysiology), University of Helsinki, Helsinki, Finland
| | - Pekka Jakkula
- Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Matti Reinikainen
- Department of Anaesthesiology and Intensive Care, Kuopio University Hospital and University of Eastern Finland, Kuopio, Finland
| | - Fabrizio Montecucco
- Department of Internal Medicine, IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, Genoa, Italy.,First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Markus B Skrifvars
- Department of Emergency Care and Services, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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El-Ashmawy NE, Al-Ashmawy GM, Farag AA, Ibrahim AO. Hemin versus erythropoietin: Possible role in Nrf2/HO-1 signaling pathway in rats with nephrotoxicity. Biomed Pharmacother 2022; 156:113971. [PMID: 36411647 DOI: 10.1016/j.biopha.2022.113971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/27/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND AIM Gentamycin-induced nephrotoxicity is related to stimulation of oxidative stress and inflammatory cascades leading to apoptotic renal damage. Heme oxygenase-1 (HO-1) induction considered to be an adaptive response against oxidative tissue damage. Our study aimed to investigate the possible nephroprotective role of HO-1 inducers (hemin and erythropoietin (EPO)) and elucidate their potential underlying molecular mechanisms by assessing their antioxidant, anti-apoptotic, and anti-inflammatory properties. METHODS Kidney function markers (urea and creatinine), lipid peroxidation and antioxidant markers (MDA and GPx), inflammation and apoptotic markers (IL-6 and Bcl-2), and the relative gene expression levels of Nrf2 and HO-1 were assessed. Histopathological changes of the kidney were examined. RESULTS Nephrotoxic rats pretreated with hemin showed significant decrease in serum level of urea, creatinine, and MDA, compared to non-treated group. The kidney tissues also showed significant elevation of Bcl2 level, but significant decrease of IL-6, compared to non-treated group. Moreover, hemin pre-treatment significantly upregulated gene expression of Nrf2 and HO-1 in kidney tissue to near the normal control group. On the other hand, pretreatment with EPO showed significant upregulation of HO-1 gene expression but didn't show significant difference in Nrf2 gene expression compared to control group. The histopathological examination of kidney supported the biochemical results. CONCLUSION The current results proved that hemin rather than EPO, showed reno-protective effects in rats, which was mediated by activation of Nrf2 signaling pathway. This could be also attributed to the observed anti-inflammatory, antioxidant, and anti-apoptotic properties of hemin. In this regard, EPO showed lower potency.
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Affiliation(s)
| | | | - Amr A Farag
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Egypt.
| | - Amera O Ibrahim
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Egypt.
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Stimulation of the ventromedial prefrontal cortex blocks the return of subcortically mediated fear responses. Transl Psychiatry 2022; 12:394. [PMID: 36127327 PMCID: PMC9489865 DOI: 10.1038/s41398-022-02174-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 11/08/2022] Open
Abstract
The ventromedial prefrontal cortex (vmPFC) mediates the inhibition of defensive responses upon encounters of cues, that had lost their attribute as a threat signal via previous extinction learning. Here, we investigated whether such fear extinction recall can be facilitated by anodal transcranial direct current stimulation (tDCS). Extinction recall was tested twenty-four hours after previously acquired fear was extinguished. Either anodal tDCS or sham stimulation targeting the vmPFC was applied during this test. After stimulation ceased, we examined return of fear after subjects had been re-exposed to aversive events. Fear was assessed by reports of threat expectancy and modulations of autonomic (skin conductance, heart rate) and protective reflex (startle potentiation) measures, the latter of which are mediated by subcortical defense circuits. While tDCS did not affect initial extinction recall, it abolished the return of startle potentiation and autonomic components of the fear response. Results suggest hierarchical multi-level vmPFC functions in human fear inhibition and indicate, that its stimulation might immunize against relapses into pathological subcortically mediated defensive activation.
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23
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Gómez R, Neri-Bazán RM, Posadas-Mondragon A, Vizcaíno-Dorado PA, Magaña JJ, Aguilar-Faisal JL. Molecular Assessments, Statistical Effectiveness Parameters and Genetic Structure of Captive Populations of Tursiops truncatus Using 15 STRs. Animals (Basel) 2022; 12:ani12141857. [PMID: 35883404 PMCID: PMC9312175 DOI: 10.3390/ani12141857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The bottlenose dolphins are one of the most used species in entertainment, assisted therapy, education, and research on welfare. However, their maintenance in captivity requires powerful and sensitive tools for preserving their diversity. The number of genetic markers for this purpose remains controversial, restraining the marine species’ genetic diversity determination. We aimed to select 15 hypervariable molecular markers whose statistical parameters were made in 210 captive dolphins from 18 Mexican centers to support their usefulness. The proposed set of markers allowed us to obtain a genetic fingerprint of each dolphin. Additionally, we identified the structure of the captive population, analyzing the groups according to the capture location. Such characterization is key for maintaining the captive species’ biodiversity rates within conservation and reintroduction programs. However, these 15 genetic markers can also be helpful for small- isolated populations, subspecies and other genera of endangered and vulnerable species. Abstract Genetic analysis is a conventional way of identifying and monitoring captive and wildlife species. Knowledge of statistical parameters reinforcing their usefulness and effectiveness as powerful tools for preserving diversity is crucial. Although several studies have reported the diversity of cetaceans such as Tursiops truncatus using microsatellites, its informative degree has been poorly reported. Furthermore, the genetic structure of this cetacean has not been fully studied. In the present study, we selected 15 microsatellites with which 210 dolphins were genetically characterized using capillary electrophoresis. The genetic assertiveness of this set of hypervariable markers identified one individual in the range of 6.927e13 to 1.806e16, demonstrating its substantial capability in kinship relationships. The genetic structure of these 210 dolphins was also determined regarding the putative capture origin; a genetic stratification (k = 2) was found. An additional dolphin group of undetermined origin was also characterized to challenge the proficiency of our chosen markers. The set of markers proposed herein could be a helpful tool to guarantee the maintenance of the genetic diversity rates in conservation programs both in Tursiops truncatus and across other odontocetes, Mysticeti and several genera of endangered and vulnerable species.
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Affiliation(s)
- Rocío Gómez
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Mexico City 07360, Mexico;
| | - Rocío M. Neri-Bazán
- Laboratorio de Medicina de Conservación, Escuela Superior de Medicina-Instituto Politécnico Nacional (ESM-IPN), Mexico City 11340, Mexico; (R.M.N.-B.); (A.P.-M.)
- Laboratorio de Medicina Genómica, Departamento de Genética, Instituto Nacional de Rehabilitación-Luis Guillermo Ibarra-Ibarra (INR-LGII), Mexico City 14389, Mexico;
| | - Araceli Posadas-Mondragon
- Laboratorio de Medicina de Conservación, Escuela Superior de Medicina-Instituto Politécnico Nacional (ESM-IPN), Mexico City 11340, Mexico; (R.M.N.-B.); (A.P.-M.)
| | - Pablo A. Vizcaíno-Dorado
- Laboratorio de Medicina Genómica, Departamento de Genética, Instituto Nacional de Rehabilitación-Luis Guillermo Ibarra-Ibarra (INR-LGII), Mexico City 14389, Mexico;
| | - Jonathan J. Magaña
- Laboratorio de Medicina Genómica, Departamento de Genética, Instituto Nacional de Rehabilitación-Luis Guillermo Ibarra-Ibarra (INR-LGII), Mexico City 14389, Mexico;
- Departamento de Bioingenieria, Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey-Campus Ciudad de México (ITESM-CCM), Mexico City 14380, Mexico
- Correspondence: (J.J.M.); (J.L.A.-F.)
| | - José Leopoldo Aguilar-Faisal
- Laboratorio de Medicina de Conservación, Escuela Superior de Medicina-Instituto Politécnico Nacional (ESM-IPN), Mexico City 11340, Mexico; (R.M.N.-B.); (A.P.-M.)
- Correspondence: (J.J.M.); (J.L.A.-F.)
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24
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Aldubayan MA, Pigsborg K, Gormsen SMO, Serra F, Palou M, Galmés S, Palou-March A, Favari C, Wetzels M, Calleja A, Rodríguez Gómez MA, Castellnou MG, Caimari A, Galofré M, Suñol D, Escoté X, Alcaide-Hidalgo JM, M Del Bas J, Gutierrez B, Krarup T, Hjorth MF, Magkos F. A double-blinded, randomized, parallel intervention to evaluate biomarker-based nutrition plans for weight loss: The PREVENTOMICS study. Clin Nutr 2022; 41:1834-1844. [PMID: 35839545 DOI: 10.1016/j.clnu.2022.06.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/14/2022] [Accepted: 06/20/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND & AIMS Growing evidence suggests that biomarker-guided dietary interventions can optimize response to treatment. In this study, we evaluated the efficacy of the PREVENTOMCIS platform-which uses metabolomic and genetic information to classify individuals into different 'metabolic clusters' and create personalized dietary plans-for improving health outcomes in subjects with overweight or obesity. METHODS A 10-week parallel, double-blinded, randomized intervention was conducted in 100 adults (82 completers) aged 18-65 years, with body mass index ≥27 but <40 kg/m2, who were allocated into either a personalized diet group (n = 49) or a control diet group (n = 51). About 60% of all food was provided free-of-charge. No specific instruction to restrict energy intake was given. The primary outcome was change in fat mass from baseline, evaluated by dual energy X-ray absorptiometry. Other endpoints included body weight, waist circumference, lipid profile, glucose homeostasis markers, inflammatory markers, blood pressure, physical activity, stress and eating behavior. RESULTS There were significant main effects of time (P < 0.01), but no group main effects, or time-by-group interactions, for the change in fat mass (personalized: -2.1 [95% CI -2.9, -1.4] kg; control: -2.0 [95% CI -2.7, -1.3] kg) and body weight (personalized: -3.1 [95% CI -4.1, -2.1] kg; control: -3.3 [95% CI -4.2, -2.4] kg). The difference between groups in fat mass change was -0.1 kg (95% CI -1.2, 0.9 kg, P = 0.77). Both diets resulted in significant improvements in insulin resistance and lipid profile, but there were no significant differences between groups. CONCLUSION Personalized dietary plans did not result in greater benefits over a generic, but generally healthy diet, in this 10-week clinical trial. Further studies are required to establish the soundness of different precision nutrition approaches, and translate this science into clinically relevant dietary advice to reduce the burden of obesity and its comorbidities. CLINICAL TRIAL REGISTRY ClinicalTrials.gov registry (NCT04590989).
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Affiliation(s)
- Mona A Aldubayan
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Denmark; King Saud bin Abdulaziz University for Health Sciences, College of Applied Medical Sciences, Riyadh, Saudi Arabia
| | - Kristina Pigsborg
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Denmark
| | | | - Francisca Serra
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics, Biomarkers and Risk Evaluation-NuBE), University of the Balearic Islands (UIB), Health Research Institute of the Balearic Islands (IdISBa), CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Alimentómica S.L., Spin-off n.1 of the UIB Islands, Spain
| | - Mariona Palou
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics, Biomarkers and Risk Evaluation-NuBE), University of the Balearic Islands (UIB), Health Research Institute of the Balearic Islands (IdISBa), CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Alimentómica S.L., Spin-off n.1 of the UIB Islands, Spain
| | - Sebastià Galmés
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics, Biomarkers and Risk Evaluation-NuBE), University of the Balearic Islands (UIB), Health Research Institute of the Balearic Islands (IdISBa), CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Alimentómica S.L., Spin-off n.1 of the UIB Islands, Spain
| | - Andreu Palou-March
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics, Biomarkers and Risk Evaluation-NuBE), University of the Balearic Islands (UIB), Health Research Institute of the Balearic Islands (IdISBa), CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Alimentómica S.L., Spin-off n.1 of the UIB Islands, Spain
| | - Claudia Favari
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, Italy
| | - Mart Wetzels
- ONMI: Behaviour Change Technology, Eindhoven, the Netherlands
| | - Alberto Calleja
- R&D Department, Food Division, Grupo Carinsa, Sant Quirze del Valles, Barcelona, Spain
| | - Miguel Angel Rodríguez Gómez
- Eurecat, Centre Tecnològic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira I Virgili-EURECAT, 43204 Reus, Spain
| | - María Guirro Castellnou
- Eurecat, Centre Tecnològic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira I Virgili-EURECAT, 43204 Reus, Spain
| | - Antoni Caimari
- Eurecat, Centre Tecnològic de Catalunya, Biotechnology Area, Nutrition and Health Unit, Reus, Spain
| | - Mar Galofré
- Eurecat, Centre tecnològic de Catalunya, Digital Health Unit, Carrer de Bilbao, 72, 08005 Barcelona, Spain
| | - David Suñol
- Eurecat, Centre tecnològic de Catalunya, Digital Health Unit, Carrer de Bilbao, 72, 08005 Barcelona, Spain
| | - Xavier Escoté
- Eurecat, Centre Tecnològic de Catalunya, Biotechnology Area, Nutrition and Health Unit, Reus, Spain
| | | | - Josep M Del Bas
- Eurecat, Centre Tecnològic de Catalunya, Biotechnology Area, Nutrition and Health Unit, Reus, Spain
| | - Biotza Gutierrez
- Eurecat, Centre Tecnològic de Catalunya, Biotechnology Area, Nutrition and Health Unit, Reus, Spain
| | - Thure Krarup
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Denmark; Department of Endocrinology, Bispebjerg and Frederiksberg Hospital, Tuborgvej, Hellerup, Denmark
| | - Mads F Hjorth
- Healthy Weight Centre, Novo Nordisk Foundation, Tuborg Havnevej 19, 2900, Hellerup, Denmark
| | - Faidon Magkos
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Denmark.
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A HAND USE AND GRASP SENSOR SYSTEM IN MONITORING INFANT FINE MOTOR DEVELOPMENT. Arch Rehabil Res Clin Transl 2022; 4:100203. [PMID: 36123986 PMCID: PMC9482029 DOI: 10.1016/j.arrct.2022.100203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Objective To assess the feasibility of a hand use and grasp sensor system in collecting and quantifying fine motor development longitudinally in an infant's home environment. Design Cohort study. Researchers made home visits monthly to participating families to collect grasp data from infants using a hand use and grasp sensor. Setting Data collection were conducted in each participant's home. Participants A convenience sample of 14 typical developmental infants were enrolled from 3 months to 9 months of age. Two infants dropped out. A total of 62 testing sessions involving 12 infants were available for analysis (N=12). Interventions At each session, the infant was seated in a standardized infant seat. Each instrumented toy was hung on the hand use and grasp sensor structure, presented for 6 minutes in 3 feedback modes: visual, auditory, and vibratory. Main Outcome Measures Infant grasp frequency and duration, peak grasping force, average grasping force, force coefficient of variation, and proportion of bimanual grasps. Results A total of 2832 recorded grasp events from 12 infants were analyzed. In linear mixed-effects model analysis, when interacting with each toy, infants’ peak grasp force, average grasp force, and accumulated grasp time all increased significantly with age (all P<.001). Bimanual grasps also occupied an increasingly greater percentage of infants’ total grasps as they grew older (bar toy P<.001, candy toy P=.021). Conclusions We observed significant changes in hand use and grasp sensor outcome measures with age that are consistent with maturation of grasp skills. We envision the evolution of hand use and grasp sensor technology into an inexpensive and convenient tool to track infant grasp development for early detection of possible developmental delay and/or cerebral palsy as a supplement to clinical evaluations.
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MiR-24-3p Conservatively Regulates Muscle Cell Proliferation and Apoptosis by Targeting Common Gene CAMK2B in Rat and Cattle. Animals (Basel) 2022; 12:ani12040505. [PMID: 35203213 PMCID: PMC8868287 DOI: 10.3390/ani12040505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 12/19/2022] Open
Abstract
Skeletal muscle plays an important role in the growth and development of meat animals. MicroRNAs (miRNAs) can participate in the regulation of muscle development-related functions; however, there have been few reports on whether there are related miRNAs that conservatively regulate muscle development among different species. In this study, the miRNA transcriptome sequencing data of the muscle tissue of cattle, rat, goat, and pig showed that miR-24-3p may conservatively regulate muscle development in these species. Furthermore, mmu-miR-24-3p can positively regulate C2C12 cell proliferation and apoptosis by regulating key proliferation and apoptosis genes in muscle development, which was verified by CCK-8 and RT-qPCR. Bta-miR-24-3p can also positively regulate the proliferation and apoptosis of bovine muscle primary cells by regulating key proliferation and apoptosis genes in the process of muscle development, as verified by CCK-8 and RT-qPCR. The target genes of miR-24-3p in cattle, rat, goat, and pig, which include a large proportion of target genes shared among the four species, are enriched in multiple cell functions and signal pathways that are closely related to muscle development, as revealed by GO and KEGG enrichment analysis. A double luciferase test showed that the shared target genes WNT4, CAMK2B, and TCF7 were targeted by mmu-miR-24-3p in rat and bta-miR-24-3p in cattle. These three shared target genes WNT4, CAMK2B, and TCF7 are involved in the Wnt signaling pathway, which showed that miR-24-3p plays an important role in rat and cattle. The shared target gene (CAMK2B) in rat and cattle increased significantly after the inhibition of miR-24-3p by RT-qPCR. The findings of this study contribute to a better understanding of the role of miR-24-3p in the regulation of muscle development.
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Nolan LS, Chen J, Gonçalves AC, Bullen A, Towers ER, Steel KP, Dawson SJ, Gale JE. Targeted deletion of the RNA-binding protein Caprin1 leads to progressive hearing loss and impairs recovery from noise exposure in mice. Sci Rep 2022; 12:2444. [PMID: 35165318 PMCID: PMC8844073 DOI: 10.1038/s41598-022-05657-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 01/12/2022] [Indexed: 11/25/2022] Open
Abstract
Cell cycle associated protein 1 (Caprin1) is an RNA-binding protein that can regulate the cellular post-transcriptional response to stress. It is a component of both stress granules and neuronal RNA granules and is implicated in neurodegenerative disease, synaptic plasticity and long-term memory formation. Our previous work suggested that Caprin1 also plays a role in the response of the cochlea to stress. Here, targeted inner ear-deletion of Caprin1 in mice leads to an early onset, progressive hearing loss. Auditory brainstem responses from Caprin1-deficient mice show reduced thresholds, with a significant reduction in wave-I amplitudes compared to wildtype. Whilst hair cell structure and numbers were normal, the inner hair cell-spiral ganglion neuron (IHC-SGN) synapse revealed abnormally large post-synaptic GluA2 receptor puncta, a defect consistent with the observed wave-I reduction. Unlike wildtype mice, mild-noise-induced hearing threshold shifts in Caprin1-deficient mice did not recover. Oxidative stress triggered TIA-1/HuR-positive stress granule formation in ex-vivo cochlear explants from Caprin1-deficient mice, showing that stress granules could still be induced. Taken together, these findings suggest that Caprin1 plays a key role in maintenance of auditory function, where it regulates the normal status of the IHC-SGN synapse.
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Affiliation(s)
- Lisa S Nolan
- UCL Ear Institute, 332 Gray's Inn Road, London, WC1X 8EE, UK
- Wolfson Centre for Age-Related Diseases, King's College London, Guy's Campus, London, SE1 1UL, UK
| | - Jing Chen
- Wolfson Centre for Age-Related Diseases, King's College London, Guy's Campus, London, SE1 1UL, UK
| | | | - Anwen Bullen
- UCL Ear Institute, 332 Gray's Inn Road, London, WC1X 8EE, UK
| | - Emily R Towers
- UCL Ear Institute, 332 Gray's Inn Road, London, WC1X 8EE, UK
| | - Karen P Steel
- Wolfson Centre for Age-Related Diseases, King's College London, Guy's Campus, London, SE1 1UL, UK
| | - Sally J Dawson
- UCL Ear Institute, 332 Gray's Inn Road, London, WC1X 8EE, UK.
| | - Jonathan E Gale
- UCL Ear Institute, 332 Gray's Inn Road, London, WC1X 8EE, UK.
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Jiang Y, Li Q, Mao W, Tang W, White JF, Li H. Endophytic bacterial community of Stellera chamaejasme L. and its role in improving host plants' competitiveness in grasslands. Environ Microbiol 2022; 24:3322-3333. [PMID: 35001475 DOI: 10.1111/1462-2920.15897] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/03/2022] [Accepted: 01/05/2022] [Indexed: 01/02/2023]
Abstract
Stellera chamaejasme has become a problematic weed in northern and south-western grasslands of China. To evaluate a possible role of endophytes in its strong competitive capacity, the endophytic bacterial community of S. chamaejasme was investigated by culture-dependent and independent methods, and the growth-promoting traits of some culturable isolates as well as the benefit of endophyte ST3CS3 (Brevundimonas sp.) on host plants growth were studied. The results showed that 823 OTUs were generated with a 97% similarity level in the culture-independent study. They were classified into 29 phyla, 61 classes, 147 orders, 237 families and 440 genera. Among them, Pseudomonas and Ralstonia were the most dominant genera in belowground parts (G) (64.25%) and aboveground parts (S) (26.54%) respectively. The diversity and species richness of endophytes in S were significantly higher than that of G (P < 0.001, t-test). Contrary to this, the number of culturable bacteria in S was a little lower than that of G (P > 0.05, t-test). Totally, 176 isolates belonging to 30 morphotypes were obtained in the culture-dependent study. Among them, Acinetobacter was the most dominant genus in G (51.30%), then followed by Pseudomonas (6.09%) and Brevundimonas (6.09%), while Lysinibacillus (21.31%) was the most dominant genus in S, followed by Pseudomonas (11.48%). Growth-promoting trait tests indicated that 93.65% of the tested isolates (63) exhibited nitrogen-fixing, IAA-synthesizing, phosphorus or potassium solubilizing capacity, in which 77.97% belonged to Proteobacteria, a phylum found to contain more active isolates. Pot experiments demonstrated that endophyte ST3CS3 can significantly improve host plants growth and increase its nitrogen and chlorophyll content (P < 0.01, t-test). Therefore, we suggest that strong competitiveness of S. chamaejasme may in part be due to possession of high ratios of plant growth-promoting proteobacterial endophytes such as Pseudomonas, Acinetobacter and Brevundimonas.
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Affiliation(s)
- Yuejuan Jiang
- Medical School of Kunming University of Science and Technology, Kunming, 650500, China
| | - Qiaohong Li
- The First People's Hospital of Yunnan Province, Kunming, 650032, China
| | - Wenqin Mao
- Medical School of Kunming University of Science and Technology, Kunming, 650500, China
| | - Wengting Tang
- Medical School of Kunming University of Science and Technology, Kunming, 650500, China
| | - James F White
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, 08901, USA
| | - Haiyan Li
- Medical School of Kunming University of Science and Technology, Kunming, 650500, China
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GFAp and tau protein as predictors of neurological outcome after out-of-hospital cardiac arrest: A post hoc analysis of the COMACARE trial. Resuscitation 2021; 170:141-149. [PMID: 34863908 PMCID: PMC8786666 DOI: 10.1016/j.resuscitation.2021.11.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 12/15/2022]
Abstract
Aim To determine the ability of serum glial fibrillary acidic protein (GFAp) and tau protein to predict neurological outcome after out-of-hospital cardiac arrest (OHCA). Methods We measured plasma concentrations of GFAp and tau of patients included in the previously published COMACARE trial (NCT02698917) on intensive care unit admission and at 24, 48, and 72 h after OHCA, and compared them to neuron specific enolase (NSE). NSE concentrations were determined already during the original trial. We defined unfavourable outcome as a cerebral performance category (CPC) score of 3–5 six months after OHCA. We determined the prognostic accuracy of GFAp and tau using the receiver operating characteristic curve and area under the curve (AUROC). Results Overall, 39/112 (35%) patients had unfavourable outcomes. Over time, both markers were evidently higher in the unfavourable outcome group (p < 0.001). At 48 h, the median (interquartile range) GFAp concentration was 1514 (886–4995) in the unfavourable versus 238 (135–463) pg/ml in the favourable outcome group (p < 0.001). The corresponding tau concentrations were 99.6 (14.5–352) and 3.0 (2.2–4.8) pg/ml (p < 0.001). AUROCs at 48 and 72 h were 0.91 (95% confidence interval 0.85–0.97) and 0.91 (0.85–0.96) for GFAp and 0.93 (0.86–0.99) and 0.95 (0.89–1.00) for tau. Corresponding AUROCs for NSE were 0.86 (0.79–0.94) and 0.90 (0.82–0.97). The difference between the prognostic accuracies of GFAp or tau and NSE were not statistically significant. Conclusions At 48 and 72 h, serum both GFAp and tau demonstrated excellent accuracy in predicting outcomes after OHCA but were not superior to NSE. Clinical trial registration NCT02698917 (https://www.clinicaltrials.gov/ct2/show/NCT02698917).
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Inan S, Chen X, Eisenstein EM, Meissler JJ, Geller EB, Tallarida C, Watson M, Doura M, Barrett JE, Cowan A, Rawls SM, Adler MW, Eisenstein TK. Chemokine receptor antagonists enhance morphine's antinociceptive effect but not respiratory depression. Life Sci 2021; 285:120014. [PMID: 34619167 DOI: 10.1016/j.lfs.2021.120014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 02/07/2023]
Abstract
AIMS We have shown that chemokines injected into the periaqueductal gray region of the brain blocks opioid-induced analgesia in the rat cold-water tail flick test (CWTF). The present experiments tested whether chemokine receptor antagonists (CRAs), in combination with sub-analgesic doses of morphine, would provide maximal analgesia in the CWTF test and the mouse formalin pain assay. The effect of CRAs on respiratory depression was also evaluated. MAIN METHODS One, two or four CRAs (AMD3100/CXCR4, maraviroc/CCR5, RS504393/CCR2 orAZD8797/CX3CR1) were used in combination with sub-analgesic doses of morphine, all given systemically. Pain was assessed using the rat CWTF test or formalin injection into the paw of mice scored by licking. Respiration and oxygen saturation were measured in rats using a MouseOX® Plus - pulse oximeter. KEY FINDINGS In the CWTF test, a sub-maximal dose of morphine in combination with maraviroc alone, maraviroc plus AMD3100, or with the four chemokine receptor antagonists, produced synergistic increases in antinociception. In the formalin test, the combination of four CRAs plus a sub-maximal dose of morphine resulted in increased antinociception in both male and female mice. AMD3100 had an additive effect with morphine in both sexes. Coadministration of CRAs with morphine did not potentiate the opioid respiratory depressive effect. SIGNIFICANCE These results support the conclusion that combinations of CRAs can increase the potency of sub-analgesic doses of morphine analgesia without increasing respiratory depression. The results support an "opioid sparing" strategy for alleviation of pain using reduced doses of opioids in combination with CRAs to achieve maximal analgesia.
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Affiliation(s)
- Saadet Inan
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Xiaohong Chen
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Eric M Eisenstein
- Departments of Statistical Science and Marketing, Fox School of Business at Temple University,1810 Liacouras Walk, Philadelphia, PA 19122, USA
| | - Joseph J Meissler
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Ellen B Geller
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Christopher Tallarida
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Mia Watson
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Menahem Doura
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - James E Barrett
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Alan Cowan
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Scott M Rawls
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Martin W Adler
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA
| | - Toby K Eisenstein
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, 3500 North Broad Street, Philadelphia, PA 19140, USA.
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High Oxygen Does Not Increase Reperfusion Injury Assessed with Lipid Peroxidation Biomarkers after Cardiac Arrest: A Post Hoc Analysis of the COMACARE Trial. J Clin Med 2021; 10:jcm10184226. [PMID: 34575337 PMCID: PMC8471647 DOI: 10.3390/jcm10184226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 12/02/2022] Open
Abstract
The products of polyunsaturated fatty acid peroxidation are considered reliable biomarkers of oxidative injury in vivo. We investigated ischemia-reperfusion-related oxidative injury by determining the levels of lipid peroxidation biomarkers (isoprostane, isofuran, neuroprostane, and neurofuran) after cardiac arrest and tested the associations between the biomarkers and different arterial oxygen tensions (PaO2). We utilized blood samples collected during the COMACARE trial (NCT02698917). In the trial, 123 patients resuscitated from out-of-hospital cardiac arrest were treated with a 10–15 kPa or 20–25 kPa PaO2 target during the initial 36 h in the intensive care unit. We measured the biomarker levels at admission, and 24, 48, and 72 h thereafter. We compared biomarker levels in the intervention groups and in groups that differed in oxygen exposure prior to randomization. Blood samples for biomarker determination were available for 112 patients. All four biomarker levels peaked at 24 h; the increase appeared greater in younger patients and in patients without bystander-initiated life support. No association between the lipid peroxidation biomarkers and oxygen exposure either before or after randomization was found. Increases in the biomarker levels during the first 24 h in intensive care suggest continuing oxidative stress, but the clinical relevance of this remains unresolved.
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Christiaen E, Goossens MG, Descamps B, Delbeke J, Wadman W, Vonck K, Boon P, Raedt R, Vanhove C. White Matter Integrity in a Rat Model of Epileptogenesis: Structural Connectomics and Fixel-Based Analysis. Brain Connect 2021; 12:320-333. [PMID: 34155915 DOI: 10.1089/brain.2021.0026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: Electrophysiological and neuroimaging studies have demonstrated that large-scale brain networks are affected during the development of epilepsy. These networks can be investigated by using diffusion magnetic resonance imaging (dMRI). The most commonly used model to analyze dMRI is diffusion tensor imaging (DTI). However, DTI metrics are not specific to microstructure or pathology and the DTI model does not take into account crossing fibers, which may lead to erroneous results. To overcome these limitations, a more advanced model based on multi-shell multi-tissue constrained spherical deconvolution was used in this study to perform tractography with more precise fiber orientation estimates and to assess changes in intra-axonal volume by using fixel-based analysis. Methods: dMRI images were acquired before and at several time points after induction of status epilepticus in the intraperitoneal kainic acid (IPKA) rat model of temporal lobe epilepsy. Tractography was performed, and fixel metrics were calculated in several white matter tracts. The tractogram was analyzed by using the graph theory. Results: Global degree, global and local efficiency were decreased in IPKA animals compared with controls during epileptogenesis. Nodal degree was decreased in the limbic system and default-mode network, mainly during early epileptogenesis. Further, fiber density (FD) and fiber-density-and-cross-section (FDC) were decreased in several white matter tracts. Discussion: These results indicate a decrease in overall structural connectivity, integration, and segregation and decreased structural connectivity in the limbic system and default-mode network. Decreased FD and FDC point to a decrease in intra-axonal volume fraction during epileptogenesis, which may be related to neuronal degeneration and gliosis. Impact statement To the best of our knowledge, this is the first longitudinal multi-shell diffusion magnetic resonance imaging study that combines whole-brain tractography and fixel-based analysis to investigate changes in structural brain connectivity and white matter integrity during epileptogenesis in a rat model of temporal lobe epilepsy. Our findings present better insights into how the topology of the structural brain network changes during epileptogenesis and how these changes are related to white matter integrity. This could improve the understanding of the basic mechanisms of epilepsy and aid the rational development of imaging biomarkers and epilepsy therapies.
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Affiliation(s)
- Emma Christiaen
- MEDISIP, Department of Electronics and Information Systems, Ghent University, Ghent, Belgium
| | | | - Benedicte Descamps
- MEDISIP, Department of Electronics and Information Systems, Ghent University, Ghent, Belgium
| | - Jean Delbeke
- 4Brain, Department of Head and Skin, Ghent University, Ghent, Belgium
| | - Wytse Wadman
- 4Brain, Department of Head and Skin, Ghent University, Ghent, Belgium
| | - Kristl Vonck
- 4Brain, Department of Head and Skin, Ghent University, Ghent, Belgium
| | - Paul Boon
- 4Brain, Department of Head and Skin, Ghent University, Ghent, Belgium
| | - Robrecht Raedt
- 4Brain, Department of Head and Skin, Ghent University, Ghent, Belgium
| | - Christian Vanhove
- MEDISIP, Department of Electronics and Information Systems, Ghent University, Ghent, Belgium
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Song Z, Swarna S, Manns JR. Prioritization of social information by the basolateral amygdala in rats. Neurobiol Learn Mem 2021; 184:107489. [PMID: 34271138 DOI: 10.1016/j.nlm.2021.107489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 04/27/2021] [Accepted: 07/08/2021] [Indexed: 10/20/2022]
Abstract
The amygdala is a collection of nuclei that support adaptive social behavior and are implicated in disorders such as autism. The basolateral complex of the amygdala (BLA), a main subdivision of the amygdala, influences fear responses, motivated behavior, and memory of emotional events via its communication with other amygdalar nuclei and with other brain regions such as the prefrontal cortex, striatum, and hippocampus. The specific role of the BLA in responses to social stimuli is less clear. The present study of female rats investigated the role of the BLA in responding to socially-relevant information by asking how inactivation of the BLA with bilateral infusions of the GABA receptor agonist muscimol would affect spontaneous exploration of wood blocks scented either with conspecific male or female urine or with nonsocial odorants. Conspecific urine samples were used because urine conveys information about sex, health, social status, and reproductive state in rodents. The results revealed that BLA inactivation reduced female rats' spontaneous preference for social odors over nonsocial odors, specifically for female urine. However, BLA inactivation did not generally impair rats' ability to distinguish two odors from the same category (e.g., urine odors from two different male rats). The results indicate that the BLA is important for responding to salience of social stimuli but not for discriminating between different individuals, a result that has important implications for amygdalar modulation of downstream attention, motivation, and memory processes for social stimuli.
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Affiliation(s)
- Zhimin Song
- Department of Psychology, Emory University, United States
| | - Sujith Swarna
- Neuroscience and Behavioral Biology Program, Emory University, United States
| | - Joseph R Manns
- Department of Psychology, Emory University, United States.
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LaPlaca MC, Huie JR, Alam HB, Bachstetter AD, Bayir H, Bellgowan PF, Cummings D, Dixon CE, Ferguson AR, Ferland-Beckham C, Floyd CL, Friess SH, Galanopoulou AS, Hall ED, Harris NG, Hawkins BE, Hicks RR, Hulbert LE, Johnson VE, Kabitzke PA, Lafrenaye AD, Lemmon VP, Lifshitz CW, Lifshitz J, Loane DJ, Misquitta L, Nikolian VC, Noble-Haeusslein LJ, Smith DH, Taylor-Burds C, Umoh N, Vovk O, Williams AM, Young M, Zai LJ. Pre-Clinical Common Data Elements for Traumatic Brain Injury Research: Progress and Use Cases. J Neurotrauma 2021; 38:1399-1410. [PMID: 33297844 PMCID: PMC8082734 DOI: 10.1089/neu.2020.7328] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Traumatic brain injury (TBI) is an extremely complex condition due to heterogeneity in injury mechanism, underlying conditions, and secondary injury. Pre-clinical and clinical researchers face challenges with reproducibility that negatively impact translation and therapeutic development for improved TBI patient outcomes. To address this challenge, TBI Pre-clinical Working Groups expanded upon previous efforts and developed common data elements (CDEs) to describe the most frequently used experimental parameters. The working groups created 913 CDEs to describe study metadata, animal characteristics, animal history, injury models, and behavioral tests. Use cases applied a set of commonly used CDEs to address and evaluate the degree of missing data resulting from combining legacy data from different laboratories for two different outcome measures (Morris water maze [MWM]; RotorRod/Rotarod). Data were cleaned and harmonized to Form Structures containing the relevant CDEs and subjected to missing value analysis. For the MWM dataset (358 animals from five studies, 44 CDEs), 50% of the CDEs contained at least one missing value, while for the Rotarod dataset (97 animals from three studies, 48 CDEs), over 60% of CDEs contained at least one missing value. Overall, 35% of values were missing across the MWM dataset, and 33% of values were missing for the Rotarod dataset, demonstrating both the feasibility and the challenge of combining legacy datasets using CDEs. The CDEs and the associated forms created here are available to the broader pre-clinical research community to promote consistent and comprehensive data acquisition, as well as to facilitate data sharing and formation of data repositories. In addition to addressing the challenge of standardization in TBI pre-clinical studies, this effort is intended to bring attention to the discrepancies in assessment and outcome metrics among pre-clinical laboratories and ultimately accelerate translation to clinical research.
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Affiliation(s)
- Michelle C. LaPlaca
- Department of Biomedical Engineering, Georgia Institute of Technology/Emory University, Atlanta, Georgia, USA
- San Francisco Veterans Affairs Health Care System, San Francisco, California, USA
| | - J. Russell Huie
- Brain and Spinal Injury Center, Department of Neurological Surgery, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, California, USA
| | - Hasan B. Alam
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Adam D. Bachstetter
- Department of Neuroscience, University of Kentucky, Lexington, Kentucky, USA
| | - Hűlya Bayir
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | | | - C. Edward Dixon
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Adam R. Ferguson
- Brain and Spinal Injury Center, Department of Neurological Surgery, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, California, USA
| | | | - Candace L. Floyd
- Department of Physical Medicine and Rehabilitation, University of Utah, Salt Lake City, Utah, USA
| | - Stuart H. Friess
- Division of Critical Care Medicine, Washington University in St. Louis, St. Louis, Missouri, USA
| | | | - Edward D. Hall
- Department of Neuroscience, University of Kentucky, Lexington, Kentucky, USA
| | - Neil G. Harris
- Department of Neurosurgery, University of California, Los Angeles, Los Angeles, California, USA
| | - Bridget E. Hawkins
- Department of Anesthesiology, University of Texas Medical Branch, Galveston, Texas, USA
| | | | - Lindsey E. Hulbert
- Department of Animal Sciences and Industry, Kansas State University, Manhattan, Kansas, USA
| | - Victoria E. Johnson
- Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Audrey D. Lafrenaye
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Vance P. Lemmon
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Carrie W. Lifshitz
- Department of Child Health, University of Arizona College of Medicine Phoenix, Phoenix, Arizona, USA
| | - Jonathan Lifshitz
- Department of Child Health, University of Arizona College of Medicine Phoenix, Phoenix, Arizona, USA
| | - David J. Loane
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
| | | | | | | | - Douglas H. Smith
- Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Nsini Umoh
- Department of Defense, U.S. Army Medical Research and Materiel Command, Fort Detrick, Frederick, Maryland, USA
| | - Olga Vovk
- National Institutes of Health, Bethesda, Maryland, USA
| | - Aaron M. Williams
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Margaret Young
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Orizondo RA, Omecinski KS, May AG, Dhamotharan V, Frankowski BJ, Burgreen GW, Ye SH, Kocyildirim E, Sanchez PG, D’Cunha J, Wagner WR, Federspiel WJ. Month-long Respiratory Support by a Wearable Pumping Artificial Lung in an Ovine Model. Transplantation 2021; 105:999-1007. [PMID: 33031226 PMCID: PMC8024407 DOI: 10.1097/tp.0000000000003481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND A wearable artificial lung could improve lung transplantation outcomes by easing implementation of physical rehabilitation during long-term pretransplant respiratory support. The Modular Extracorporeal Lung Assist System (ModELAS) is a compact pumping artificial lung currently under development. This study evaluated the long-term in vivo performance of the ModELAS during venovenous support in awake sheep. Feedback from early trials and computational fluid dynamic analysis guided device design optimization along the way. METHODS The ModELAS was connected to healthy sheep via a dual-lumen cannula in the jugular vein. Sheep were housed in a fixed-tether pen while wearing the device in a holster during support. Targeted blood flow rate and support duration were 2-2.5 L/min and 28-30 days, respectively. Anticoagulation was maintained via systemic heparin. Device pumping and gas exchange performance and hematologic indicators of sheep physiology were measured throughout support. RESULTS Computational fluid dynamic-guided design modifications successfully decreased pump thrombogenicity from initial designs. For the optimized design, 4 of 5 trials advancing past early perioperative and cannula-related complications lasted the full month of support. Blood flow rate and CO2 removal in these trials were 2.1 ± 0.3 L/min and 139 ± 15 mL/min, respectively, and were stable during support. One trial ended after 22 days of support due to intradevice thrombosis. Support was well tolerated by the sheep with no signs of hemolysis or device-related organ impairment. CONCLUSIONS These results demonstrate the ability of the ModELAS to provide safe month-long support without consistent deterioration of pumping or gas exchange capabilities.
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Affiliation(s)
- Ryan A. Orizondo
- McGowan Institute for Regenerative Medicine, University of Pittsburgh
- Department of Medicine, University of Pittsburgh
- Department of Bioengineering, University of Pittsburgh
| | - Katelin S. Omecinski
- McGowan Institute for Regenerative Medicine, University of Pittsburgh
- Department of Bioengineering, University of Pittsburgh
| | - Alexandra G. May
- McGowan Institute for Regenerative Medicine, University of Pittsburgh
- Department of Chemical and Petroleum Engineering, University of Pittsburgh
| | - Vishaal Dhamotharan
- McGowan Institute for Regenerative Medicine, University of Pittsburgh
- Department of Bioengineering, University of Pittsburgh
| | | | - Greg W. Burgreen
- Computational Fluid Dynamics Group, Center for Advanced Vehicular Systems, Mississippi State University
| | - Sang-Ho Ye
- McGowan Institute for Regenerative Medicine, University of Pittsburgh
- Department of Surgery, University of Pittsburgh
| | - Ergin Kocyildirim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh
- Department of Cardiothoracic Surgery, Children’s Hospital of Pittsburgh
| | - Pablo G. Sanchez
- Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center
| | - Jonathan D’Cunha
- Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center
| | - William R. Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh
- Department of Bioengineering, University of Pittsburgh
- Department of Chemical and Petroleum Engineering, University of Pittsburgh
- Department of Surgery, University of Pittsburgh
| | - William J. Federspiel
- McGowan Institute for Regenerative Medicine, University of Pittsburgh
- Department of Bioengineering, University of Pittsburgh
- Department of Chemical and Petroleum Engineering, University of Pittsburgh
- Department of Critical Care Medicine, University of Pittsburgh Medical Center
- Clinical and Translational Science Institute, University of Pittsburgh
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Grohn KJ, Moyer BS, Wortel DC, Fisher CM, Lumen E, Bianchi AH, Kelly K, Campbell PS, Hagrman DE, Bagg RG, Clement J, Wolfe AJ, Basso A, Nicoletti C, Lai G, Provinciali M, Malavolta M, Moody KJ. C 60 in olive oil causes light-dependent toxicity and does not extend lifespan in mice. GeroScience 2021; 43:579-591. [PMID: 33123847 PMCID: PMC8110650 DOI: 10.1007/s11357-020-00292-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 10/22/2020] [Indexed: 10/23/2022] Open
Abstract
C60 is a potent antioxidant that has been reported to substantially extend the lifespan of rodents when formulated in olive oil (C60-OO) or extra virgin olive oil (C60-EVOO). Despite there being no regulated form of C60-OO, people have begun obtaining it from online sources and dosing it to themselves or their pets, presumably with the assumption of safety and efficacy. In this study, we obtain C60-OO from a sample of online vendors, and find marked discrepancies in appearance, impurity profile, concentration, and activity relative to pristine C60-OO formulated in-house. We additionally find that pristine C60-OO causes no acute toxicity in a rodent model but does form toxic species that can cause significant morbidity and mortality in mice in under 2 weeks when exposed to light levels consistent with ambient light. Intraperitoneal injections of C60-OO did not affect the lifespan of CB6F1 female mice. Finally, we conduct a lifespan and health span study in males and females C57BL/6 J mice comparing oral treatment with pristine C60-EVOO and EVOO alone versus untreated controls. We failed to observe significant lifespan and health span benefits of C60-EVOO or EVOO supplementation compared to untreated controls, both starting the treatment in adult or old age. Our results call into question the biological benefit of C60-OO in aging.
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Affiliation(s)
- Kristopher J Grohn
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
- Department of Chemistry, College of Environmental Science and Forestry, State University of New York, Syracuse, NY, 13210, USA
| | - Brandon S Moyer
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
| | - Danique C Wortel
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
| | - Cheyanne M Fisher
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
| | - Ellie Lumen
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
- Betterhumans Inc., Gainesville, FL, USA
| | - Anthony H Bianchi
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
| | - Kathleen Kelly
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
| | - Paul S Campbell
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
| | - Douglas E Hagrman
- Department of Chemistry and Physical Sciences, State University of New York, Onondaga Community College, Syracuse, NY, 13215, USA
| | - Roger G Bagg
- BioSenex, Ltd., Lyndhurst, 1 Cranmer Street, Nottingham, Nottinghamshire, NG10 1NJ, UK
| | | | - Aaron J Wolfe
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
| | - Andrea Basso
- Advanced Technology Center for Aging Research, IRCCS INRCA, via Birarelli 8, 60121, Ancona, Italy
| | - Cristina Nicoletti
- Advanced Technology Center for Aging Research, IRCCS INRCA, via Birarelli 8, 60121, Ancona, Italy
| | - Giovanni Lai
- Advanced Technology Center for Aging Research, IRCCS INRCA, via Birarelli 8, 60121, Ancona, Italy
| | - Mauro Provinciali
- Advanced Technology Center for Aging Research, IRCCS INRCA, via Birarelli 8, 60121, Ancona, Italy
| | - Marco Malavolta
- Advanced Technology Center for Aging Research, IRCCS INRCA, via Birarelli 8, 60121, Ancona, Italy.
| | - Kelsey J Moody
- Ichor Therapeutics, Inc., 2521 US Route 11, LaFayette, NY, 13084, USA
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Szeska C, Richter J, Wendt J, Weymar M, Hamm AO. Attentive immobility in the face of inevitable distal threat-Startle potentiation and fear bradycardia as an index of emotion and attention. Psychophysiology 2021; 58:e13812. [PMID: 33759212 DOI: 10.1111/psyp.13812] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/05/2021] [Accepted: 03/02/2021] [Indexed: 11/27/2022]
Abstract
During fear conditioning, a cue (CS) signals an inevitable distal threat (US) and evokes a conditioned response that can be described as attentive immobility (freezing). The organism remains motionless and monitors the source of danger while startle responses are potentiated, indicating a state of defensive hypervigilance. Although in animals vagally mediated fear bradycardia is also reliably observed under such circumstances, results are mixed in human fear conditioning. Using a single-cue fear conditioning and extinction protocol, we tested cardiac reactivity and startle potentiation indexing low-level defensive strategies in a fear-conditioned (n = 40; paired presentations of CS and US) compared with a non-conditioned control group (n = 40; unpaired presentations of CS and US). Additionally, we assessed shock expectancy ratings on a trial-by-trial basis indexing declarative knowledge of the previous contingencies. Half of each group underwent extinction under sham or active transcutaneous vagus nerve stimulation (tVNS), serving as additional proof of concept. We found stronger cardiac deceleration during CS presentation in the fear learning relative to the control group. This learned fear bradycardia was positively correlated with conditioned startle potentiation but not with declarative knowledge of CS-US contingencies. TVNS abolished differences in heart rate changes between both groups and removed the significant correlation between late cardiac deceleration and startle potentiation in the fear learning group. Results suggest, fear-conditioned cues evoke attentive immobility in humans, characterized by cardiac deceleration and startle potentiation. Such defensive response pattern is elicited by cues predicting inevitable distal threat and resembles conditioned fear responses observed in rodents.
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Affiliation(s)
- Christoph Szeska
- Department of Physiological and Clinical Psychology/Psychotherapy, University of Greifswald, Greifswald, Germany
| | - Jan Richter
- Department of Physiological and Clinical Psychology/Psychotherapy, University of Greifswald, Greifswald, Germany
| | - Julia Wendt
- Department of Biological Psychology and Affective Science, Faculty of Human Sciences, University of Potsdam, Potsdam, Germany
| | - Mathias Weymar
- Department of Biological Psychology and Affective Science, Faculty of Human Sciences, University of Potsdam, Potsdam, Germany.,Faculty of Health Sciences Brandenburg, University of Potsdam, Potsdam, Germany
| | - Alfons O Hamm
- Department of Physiological and Clinical Psychology/Psychotherapy, University of Greifswald, Greifswald, Germany
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Serum fibroblast growth factor 21 levels after out of hospital cardiac arrest are associated with neurological outcome. Sci Rep 2021; 11:690. [PMID: 33436812 PMCID: PMC7804444 DOI: 10.1038/s41598-020-80086-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 12/15/2020] [Indexed: 11/08/2022] Open
Abstract
Fibroblast growth factor (FGF) 21 is a marker associated with mitochondrial and cellular stress. Cardiac arrest causes mitochondrial stress, and we tested if FGF 21 would reflect the severity of hypoxia-reperfusion injury after cardiac arrest. We measured serum concentrations of FGF 21 in 112 patients on ICU admission and 24, 48 and 72 h after out-of-hospital cardiac arrest with shockable initial rhythm included in the COMACARE study (NCT02698917). All patients received targeted temperature management for 24 h. We defined 6-month cerebral performance category 1–2 as good and 3–5 as poor neurological outcome. We used samples from 40 non-critically ill emergency room patients as controls. We assessed group differences with the Mann Whitney U test and temporal differences with linear modeling with restricted maximum likelihood estimation. We used multivariate logistic regression to assess the independent predictive value of FGF 21 concentration for neurologic outcome. The median (inter-quartile range, IQR) FGF 21 concentration was 0.25 (0.094–0.91) ng/ml in controls, 0.79 (0.37–1.6) ng/ml in patients at ICU admission (P < 0.001 compared to controls) and peaked at 48 h [1.2 (0.46–2.5) ng/ml]. We found no association between arterial blood oxygen partial pressure and FGF 21 concentrations. We observed with linear modeling an effect of sample timepoint (F 5.6, P < 0.01), poor neurological outcome (F 6.1, P = 0.01), and their interaction (F 3.0, P = 0.03), on FGF 21 concentration. In multivariate logistic regression analysis, adjusting for relevant clinical covariates, higher average FGF 21 concentration during the first 72 h was independently associated with poor neurological outcome (odds ratio 1.60, 95% confidence interval 1.10–2.32). We conclude that post cardiac arrest patients experience cellular and mitochondrial stress, reflected as a systemic FGF 21 response. This response is higher with a more severe hypoxic injury but it is not exacerbated by hyperoxia.
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Lewis MA, Di Domenico F, Ingham NJ, Prosser HM, Steel KP. Hearing impairment due to Mir183/96/182 mutations suggests both loss and gain of function effects. Dis Model Mech 2020; 14:dmm.047225. [PMID: 33318051 PMCID: PMC7903918 DOI: 10.1242/dmm.047225] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 12/03/2020] [Indexed: 01/13/2023] Open
Abstract
The microRNA miR-96 is important for hearing, as point mutations in humans and mice result in dominant progressive hearing loss. Mir96 is expressed in sensory cells along with Mir182 and Mir183, but the roles of these closely-linked microRNAs are as yet unknown. Here we analyse mice carrying null alleles of Mir182, and of Mir183 and Mir96 together to investigate their roles in hearing. We found that Mir183/96 heterozygous mice had normal hearing and homozygotes were completely deaf with abnormal hair cell stereocilia bundles and reduced numbers of inner hair cell synapses at four weeks old. Mir182 knockout mice developed normal hearing then exhibited progressive hearing loss. Our transcriptional analyses revealed significant changes in a range of other genes, but surprisingly there were fewer genes with altered expression in the organ of Corti of Mir183/96 null mice compared with our previous findings in Mir96 Dmdo mutants, which have a point mutation in the miR-96 seed region. This suggests the more severe phenotype of Mir96 Dmdo mutants compared with Mir183/96 mutants, including progressive hearing loss in Mir96 Dmdo heterozygotes, is likely to be mediated by the gain of novel target genes in addition to the loss of its normal targets. We propose three mechanisms of action of mutant miRNAs; loss of targets that are normally completely repressed, loss of targets whose transcription is normally buffered by the miRNA, and gain of novel targets. Any of these mechanisms could lead to a partial loss of a robust cellular identity and consequent dysfunction.
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Affiliation(s)
- Morag A Lewis
- Wolfson Centre for Age-Related Diseases, King's College London, London, SE1 1UL, UK
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK
| | | | - Neil J Ingham
- Wolfson Centre for Age-Related Diseases, King's College London, London, SE1 1UL, UK
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK
| | - Haydn M Prosser
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK
| | - Karen P Steel
- Wolfson Centre for Age-Related Diseases, King's College London, London, SE1 1UL, UK
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK
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The lateral hypothalamus and orexinergic transmission in the paraventricular thalamus promote the attribution of incentive salience to reward-associated cues. Psychopharmacology (Berl) 2020; 237:3741-3758. [PMID: 32852601 PMCID: PMC7960144 DOI: 10.1007/s00213-020-05651-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 08/20/2020] [Indexed: 12/14/2022]
Abstract
RATIONALE Prior research suggests that the neural pathway from the lateral hypothalamic area (LHA) to the paraventricular nucleus of the thalamus (PVT) mediates the attribution of incentive salience to Pavlovian reward cues. However, a causal role for the LHA and the neurotransmitters involved have not been demonstrated in this regard. OBJECTIVES To examine (1) the role of LHA in the acquisition of Pavlovian conditioned approach (PavCA) behaviors, and (2) the role of PVT orexin 1 receptors (OX1r) and orexin 2 receptors (OX2r) in the expression of PavCA behaviors and conditioned reinforcement. METHODS Rats received excitotoxic lesions of the LHA prior to Pavlovian training. A separate cohort of rats characterized as sign-trackers (STs) or goal-trackers (GTs) received the OX1r antagonist SB-334867, or the OX2r antagonist TCS-OX2-29, into the PVT, to assess their effects on the expression of PavCA behavior and on the conditioned reinforcing properties of a Pavlovian reward cue. RESULTS LHA lesions attenuated the development of sign-tracking behavior. Administration of either the OX1r or OX2r antagonist into the PVT reduced sign-tracking behavior in STs. Further, OX2r antagonism reduced the conditioned reinforcing properties of a Pavlovian reward cue in STs. CONCLUSIONS The LHA is necessary for the development of sign-tracking behavior; and blockade of orexin signaling in the PVT attenuates the expression of sign-tracking behavior and the conditioned reinforcing properties of a Pavlovian reward cue. Together, these data suggest that LHA orexin inputs to the PVT are a key component of the circuitry that encodes the incentive motivational value of reward cues.
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Nosrati Z, Bergamo M, Rodríguez-Rodríguez C, Saatchi K, Häfeli UO. Refinement and validation of infrared thermal imaging (IRT): a non-invasive technique to measure disease activity in a mouse model of rheumatoid arthritis. Arthritis Res Ther 2020; 22:281. [PMID: 33256854 PMCID: PMC7708919 DOI: 10.1186/s13075-020-02367-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 11/03/2020] [Indexed: 02/07/2023] Open
Abstract
Background The discovery and development of new medicines requires high-throughput screening of possible therapeutics in a specific model of the disease. Infrared thermal imaging (IRT) is a modern assessment method with extensive clinical and preclinical applications. Employing IRT in longitudinal preclinical setting to monitor arthritis onset, disease activity and therapeutic efficacies requires a standardized framework to provide reproducible quantitative data as a precondition for clinical studies. Methods Here, we established the accuracy and reliability of an inexpensive smartphone connected infrared (IR) camera against known temperature objects as well as certified blackbody calibration equipment. An easy to use protocol incorporating contactless image acquisition and computer-assisted data analysis was developed to detect disease-related temperature changes in a collagen-induced arthritis (CIA) mouse model and validated by comparison with two conventional methods, clinical arthritis scoring and paw thickness measurement. We implemented IRT to demonstrate the beneficial therapeutic effect of nanoparticle drug delivery versus free methotrexate (MTX) in vivo. Results The calibrations revealed high accuracy and reliability of the IR camera for detecting temperature changes in the rheumatoid arthritis animal model. Significant positive correlation was found between temperature changes and paw thickness measurements as the disease progressed. IRT was found to be superior over the conventional techniques specially at early arthritis onset, when it is difficult to observe subclinical signs and measure structural changes. Conclusion IRT proved to be a valid and unbiased method to detect temperature changes and quantify the degree of inflammation in a rapid and reproducible manner in longitudinal preclinical drug efficacy studies.
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Affiliation(s)
- Zeynab Nosrati
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Marta Bergamo
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Cristina Rodríguez-Rodríguez
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada.,Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, British Columbia, V6T 1Z1, Canada
| | - Katayoun Saatchi
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada.
| | - Urs O Häfeli
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, British Columbia, V6T 1Z3, Canada. .,Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark.
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Shi J, Tan B, Luo L, Li Z, Hong L, Yang J, Cai G, Zheng E, Wu Z, Gu T. Assessment of the Growth and Reproductive Performance of Cloned Pietrain Boars. Animals (Basel) 2020; 10:E2053. [PMID: 33171943 PMCID: PMC7694642 DOI: 10.3390/ani10112053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/31/2020] [Accepted: 11/05/2020] [Indexed: 12/15/2022] Open
Abstract
How to maximize the use of the genetic merits of the high-ranking boars (also called superior ones) is a considerable question in the pig breeding industry, considering the money and time spent on selection. Somatic cell nuclear transfer (SCNT) is one of the potential ways to answer the question, which can be applied to produce clones with genetic resources of superior boar for the production of commercial pigs. For practical application, it is essential to investigate whether the clones and their progeny keep behaving better than the "normal boars", considering that in vitro culture and transfer manipulation would cause a series of harmful effects to the development of clones. In this study, 59,061 cloned embryos were transferred into 250 recipient sows to produce the clones of superior Pietrain boars. The growth performance of 12 clones and 36 non-clones and the semen quality of 19 clones and 28 non-clones were compared. The reproductive performance of 21 clones and 25 non-clones were also tested. Furthermore, we made a comparison in the growth performance between 466 progeny of the clones and 822 progeny of the non-clones. Our results showed that no significant difference in semen quality and reproductive performance was observed between the clones and the non-clones, although the clones grew slower and exhibited smaller body size than the non-clones. The F1 progeny of the clones showed a greater growth rate than the non-clones. Our results demonstrated through the large animal population showed that SCNT manipulation resulted in a low growth rate and small body size, but the clones could normally produce F1 progeny with excellent growth traits to bring more economic benefits. Therefore, SCNT could be effective in enlarging the merit genetics of the superior boars and increasing the economic benefits in pig reproduction and breeding.
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Affiliation(s)
- Junsong Shi
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.S.); (B.T.); (Z.L.); (L.H.); (J.Y.); (G.C.); (E.Z.)
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527300, China;
| | - Baohua Tan
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.S.); (B.T.); (Z.L.); (L.H.); (J.Y.); (G.C.); (E.Z.)
| | - Lvhua Luo
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527300, China;
| | - Zicong Li
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.S.); (B.T.); (Z.L.); (L.H.); (J.Y.); (G.C.); (E.Z.)
| | - Linjun Hong
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.S.); (B.T.); (Z.L.); (L.H.); (J.Y.); (G.C.); (E.Z.)
| | - Jie Yang
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.S.); (B.T.); (Z.L.); (L.H.); (J.Y.); (G.C.); (E.Z.)
| | - Gengyuan Cai
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.S.); (B.T.); (Z.L.); (L.H.); (J.Y.); (G.C.); (E.Z.)
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527300, China;
| | - Enqin Zheng
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.S.); (B.T.); (Z.L.); (L.H.); (J.Y.); (G.C.); (E.Z.)
| | - Zhenfang Wu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.S.); (B.T.); (Z.L.); (L.H.); (J.Y.); (G.C.); (E.Z.)
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527300, China;
| | - Ting Gu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.S.); (B.T.); (Z.L.); (L.H.); (J.Y.); (G.C.); (E.Z.)
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Martelletti E, Ingham NJ, Houston O, Pass JC, Chen J, Marcotti W, Steel KP. Synaptojanin2 Mutation Causes Progressive High-frequency Hearing Loss in Mice. Front Cell Neurosci 2020; 14:561857. [PMID: 33100973 PMCID: PMC7546894 DOI: 10.3389/fncel.2020.561857] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/14/2020] [Indexed: 12/04/2022] Open
Abstract
Progressive hearing loss is very common in the human population but we know little about the underlying molecular mechanisms. Synaptojanin2 (Synj2) has been reported to be involved, as a mouse mutation led to a progressive increase in auditory thresholds with age. Synaptojanin2 is a phosphatidylinositol (PI) phosphatase that removes the five-position phosphates from phosphoinositides, such as PIP2 and PIP3, and is a key enzyme in clathrin-mediated endocytosis. To investigate the mechanisms underlying progressive hearing loss, we have studied a different mutation of mouse Synj2 to look for any evidence of involvement of vesicle trafficking particularly affecting the synapses of sensory hair cells. Auditory brainstem responses (ABR) developed normally at first but started to decline between 3 and 4 weeks of age in Synj2tm1b mutants. At 6 weeks old, some evidence of outer hair cell (OHC) stereocilia fusion and degeneration was observed, but this was only seen in the extreme basal turn so cannot explain the raised ABR thresholds that correspond to more apical regions of the cochlear duct. We found no evidence of any defect in inner hair cell (IHC) exocytosis or endocytosis using single hair cell recordings, nor any sign of hair cell synaptic abnormalities. Endocochlear potentials (EP) were normal. The mechanism underlying progressive hearing loss in these mutants remains elusive, but our findings of raised distortion product otoacoustic emission (DPOAE) thresholds and signs of OHC degeneration both suggest an OHC origin for the hearing loss. Synaptojanin2 is not required for normal development of hearing but it is important for its maintenance.
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Affiliation(s)
- Elisa Martelletti
- Wolfson Centre for Age-Related Diseases, King's College London, London, United Kingdom
| | - Neil J Ingham
- Wolfson Centre for Age-Related Diseases, King's College London, London, United Kingdom
| | - Oliver Houston
- Department of Biomedical Sciences, University of Sheffield, Sheffield, United Kingdom
| | - Johanna C Pass
- Wolfson Centre for Age-Related Diseases, King's College London, London, United Kingdom
| | - Jing Chen
- Wolfson Centre for Age-Related Diseases, King's College London, London, United Kingdom
| | - Walter Marcotti
- Department of Biomedical Sciences, University of Sheffield, Sheffield, United Kingdom.,Neuroscience Institute, University of Sheffield, Sheffield, United Kingdom
| | - Karen P Steel
- Wolfson Centre for Age-Related Diseases, King's College London, London, United Kingdom
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Yan XM, Zhang Z, Liu JB, Li N, Yang GW, Luo D, Zhang Y, Yuan B, Jiang H, Zhang JB. Genome-wide identification and analysis of long noncoding RNAs in longissimus muscle tissue from Kazakh cattle and Xinjiang brown cattle. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2020; 34:1739-1748. [PMID: 33152223 PMCID: PMC8563250 DOI: 10.5713/ajas.20.0317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 09/20/2020] [Indexed: 11/27/2022]
Abstract
Objective In recent years, lncRNAs have been identified in many species, and some of them have been shown to play important roles in muscle development and myogenesis. However, the differences in lncRNAs between Kazakh cattle and Xinjiang brown cattle remain undefined; therefore, we aimed to confirm whether lncRNAs are differentially expressed in the longissimus dorsi between these two types of cattle and whether differentially expressed lncRNAs regulate muscle differentiation. Methods We used RNA-seq technology to identify lncRNAs in longissimus muscles from these cattle. The expression of lncRNAs were analyzed using StringTie (1.3.1) in terms of the FPKM values of the encoding genes. The differential expression of the transcripts in the two samples were analyzed using the DESeq R software package. The resulting FDR was controlled by the Benjamini and Hochberg's approach. KOBAS software was utilized to measure the expression of different genes in KEGG pathways. We randomly selected eight lncRNA genes and validated them by RT-qPCR. Results We found that 182 lncRNA transcripts, including 102 upregulated and 80 downregulated transcripts, were differentially expressed between Kazakh cattle and Xinjiang brown cattle. The results of RT-qPCR were consistent with the sequencing results. Enrichment analysis and functional annotation of the target genes revealed that the differentially expressed lncRNAs were associated with the MAPK, Ras and PI3k/Akt signaling pathways. We also constructed a lncRNA/mRNA coexpression network for the PI3k/Akt signaling pathway. Conclusion Our study provides insights into cattle muscle-associated lncRNAs and will contribute to a more thorough understanding of the molecular mechanism underlying muscle growth and development in cattle.
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Affiliation(s)
- Xiang-Min Yan
- College of Animal Sciences, Jilin University, Changchun (130012), Jilin, China.,Institute of Animal Husbandry,Xinjiang Academy of Animal Husbandry, Urumqi (830057), Xinjiang, China
| | - Zhe Zhang
- College of Animal Sciences, Jilin University, Changchun (130012), Jilin, China.,College of Animal Science and Technology, Northwest A&F University, Yangling, (712100), Shanxi, China
| | - Jian-Bo Liu
- College of Animal Sciences, Jilin University, Changchun (130012), Jilin, China
| | - Na Li
- Institute of Animal Husbandry,Xinjiang Academy of Animal Husbandry, Urumqi (830057), Xinjiang, China
| | - Guang-Wei Yang
- Yili State Animal Husbandry General Station, Yili (835000), Xinjiang, China
| | - Dan Luo
- College of Animal Sciences, Jilin University, Changchun (130012), Jilin, China
| | - Yang Zhang
- Institute of Animal Husbandry,Xinjiang Academy of Animal Husbandry, Urumqi (830057), Xinjiang, China
| | - Bao Yuan
- College of Animal Sciences, Jilin University, Changchun (130012), Jilin, China
| | - Hao Jiang
- College of Animal Sciences, Jilin University, Changchun (130012), Jilin, China
| | - Jia-Bao Zhang
- College of Animal Sciences, Jilin University, Changchun (130012), Jilin, China
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Serrano ME, Bahri MA, Becker G, Seret A, Germonpré C, Lemaire C, Giacomelli F, Mievis F, Luxen A, Salmon E, Rogister B, Raedt R, Plenevaux A. Exploring with [ 18F]UCB-H the in vivo Variations in SV2A Expression through the Kainic Acid Rat Model of Temporal Lobe Epilepsy. Mol Imaging Biol 2020; 22:1197-1207. [PMID: 32206990 PMCID: PMC7497718 DOI: 10.1007/s11307-020-01488-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
PURPOSE The main purpose of this study was to understand how the positron emission tomography (PET) measure of the synaptic vesicle 2A (SV2A) protein varies in vivo during the development of temporal lobe epilepsy (TLE) in the kainic acid rat model. PROCEDURES Twenty Sprague Dawley male rats were administered with multiple systemic doses of saline (control group, n = 5) or kainic acid (5 mg/kg/injection, epileptic group, n = 15). Both groups were scanned at the four phases of TLE (early, latent, transition, and chronic phase) with the [18F]UCB-H PET radiotracer and T2-structural magnetic resonance imaging. At the end of the scans (3 months post-status epilepticus), rats were monitored for 7 days with electroencephalography for the detection of spontaneous electrographic seizures. Finally, the immunofluorescence staining for SV2A expression was performed. RESULTS Control rats presented a significant increase in [18F]UCB-H binding at the last two scans, compared with the first ones (p < 0.001). This increase existed but was lower in epileptic animals, producing significant group differences in all the phases of the disease (p < 0.028). Furthermore, the quantification of the SV2A expression in vivo with the [18F]UCB-H radiotracer or ex vivo with immunofluorescence led to equivalent results, with a positive correlation between both. CONCLUSIONS Even if further studies in humans are required, the ability to detect a progressive decrease in SV2A expression during the development of temporal lobe epilepsy supports the use of [18F]UCB-H as a useful tool to differentiate, in vivo, between healthy and epileptic animals along with the development of the epileptic disease.
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Affiliation(s)
- Maria Elisa Serrano
- GIGA, CRC in vivo imaging, University of Liège, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium.
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK.
| | - Mohamed Ali Bahri
- GIGA, CRC in vivo imaging, University of Liège, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium
| | - Guillaume Becker
- GIGA, CRC in vivo imaging, University of Liège, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium
- Radiobiology Unit, SCK•CEN, Belgian Nuclear Research Centre, 2400, Mol, Belgium
| | - Alain Seret
- GIGA, CRC in vivo imaging, University of Liège, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium
| | | | - Christian Lemaire
- GIGA, CRC in vivo imaging, University of Liège, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium
| | - Fabrice Giacomelli
- Nucleis, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium
| | - Frédéric Mievis
- Nucleis, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium
| | - André Luxen
- GIGA, CRC in vivo imaging, University of Liège, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium
| | - Eric Salmon
- GIGA, CRC in vivo imaging, University of Liège, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium
- Neurology Department, CHU, Academic Hospital, University of Liège, 4000, Liège, Belgium
| | - Bernard Rogister
- Neurology Department, CHU, Academic Hospital, University of Liège, 4000, Liège, Belgium
- GIGA-Neurosciences, University of Liège, Avenue Hippocrate, 15, 4000, Liège, Belgium
| | | | - Alain Plenevaux
- GIGA, CRC in vivo imaging, University of Liège, Allée du 6 Août, Building B30, Sart Tilman, 4000, Liège, Belgium
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May AG, Orizondo RA, Frankowski BJ, Ye SH, Kocyildirim E, Wagner WR, D'Cunha J, Federspiel WJ. In vivo testing of the low-flow CO 2 removal application of a compact, platform respiratory device. Intensive Care Med Exp 2020; 8:45. [PMID: 32804310 PMCID: PMC7429452 DOI: 10.1186/s40635-020-00329-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 07/16/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Non-invasive and lung-protective ventilation techniques may improve outcomes for patients with an acute exacerbation of chronic obstructive pulmonary disease or moderate acute respiratory distress syndrome by reducing airway pressures. These less invasive techniques can fail due to hypercapnia and require transitioning patients to invasive mechanical ventilation. Extracorporeal CO2 removal devices remove CO2 independent of the lungs thereby controlling the hypercapnia and permitting non-invasive or lung-protective ventilation techniques. We are developing the Modular Extracorporeal Lung Assist System as a platform technology capable of providing three levels of respiratory assist: adult and pediatric full respiratory support and adult low-flow CO2 removal. The objective of this study was to evaluate the in vivo performance of our device to achieve low-flow CO2 removal. METHODS The Modular Extracorporeal Lung Assist System was connected to 6 healthy sheep via a 15.5 Fr dual-lumen catheter placed in the external jugular vein. The animals were recovered and tethered within a pen while supported by the device for 7 days. The pump speed was set to achieve a targeted blood flow of 500 mL/min. The extracorporeal CO2 removal rate was measured daily at a sweep gas independent regime. Hematological parameters were measured pre-operatively and regularly throughout the study. Histopathological samples of the end organs were taken at the end of each study. RESULTS All animals survived the surgery and generally tolerated the device well. One animal required early termination due to a pulmonary embolism. Intra-device thrombus formation occurred in a single animal due to improper anticoagulation. The average CO2 removal rate (normalized to an inlet pCO2 of 45 mmHg) was 75.6 ± 4.7 mL/min and did not significantly change over the course of the study (p > 0.05). No signs of consistent hemolysis or end organ damage were observed. CONCLUSION These in vivo results indicate positive performance of the Modular Extracorporeal Lung Assist System as a low-flow CO2 removal device.
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Affiliation(s)
- Alexandra G May
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 3025 East Carson Street, Pittsburgh, PA, 15203, USA
| | - Ryan A Orizondo
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 3025 East Carson Street, Pittsburgh, PA, 15203, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, USA
| | - Brian J Frankowski
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 3025 East Carson Street, Pittsburgh, PA, 15203, USA
| | - Sang-Ho Ye
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 3025 East Carson Street, Pittsburgh, PA, 15203, USA
- Department of Surgery, University of Pittsburgh, Pittsburgh, USA
| | - Ergin Kocyildirim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 3025 East Carson Street, Pittsburgh, PA, 15203, USA
- Department of Cardiothoracic Surgery, Children's Hospital of Pittsburgh, Pittsburgh, USA
| | - William R Wagner
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 3025 East Carson Street, Pittsburgh, PA, 15203, USA
- Department of Surgery, University of Pittsburgh, Pittsburgh, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, USA
| | - Jonathan D'Cunha
- Division of Lung Transplantation/Lung Failure, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, USA
| | - William J Federspiel
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, USA.
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 3025 East Carson Street, Pittsburgh, PA, 15203, USA.
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, USA.
- Department of Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, USA.
- Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, USA.
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Desloovere J, Boon P, Larsen LE, Merckx C, Goossens MG, Van den Haute C, Baekelandt V, De Bundel D, Carrette E, Delbeke J, Meurs A, Vonck K, Wadman W, Raedt R. Long-term chemogenetic suppression of spontaneous seizures in a mouse model for temporal lobe epilepsy. Epilepsia 2019; 60:2314-2324. [PMID: 31608439 DOI: 10.1111/epi.16368] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/17/2019] [Accepted: 09/17/2019] [Indexed: 01/02/2023]
Abstract
OBJECTIVE More than one-third of patients with temporal lobe epilepsy (TLE) continue to have seizures despite treatment with antiepileptic drugs, and many experience severe drug-related side effects, illustrating the need for novel therapies. Selective expression of inhibitory Designer Receptors Exclusively Activated by Designer Drugs (DREADDs) allows cell-type-specific reduction of neuronal excitability. In this study, we evaluated the effect of chemogenetic suppression of excitatory pyramidal and granule cell neurons of the sclerotic hippocampus in the intrahippocampal mouse model (IHKA) for temporal lobe epilepsy. METHODS Intrahippocampal IHKA mice were injected with an adeno-associated viral vector carrying the genes for an inhibitory DREADD hM4Di in the sclerotic hippocampus or control vector. Next, animals were treated systemically with different single doses of clozapine-N-oxide (CNO) (1, 3, and 10 mg/kg) and clozapine (0.03 and 0.1 mg/kg) and the effect on spontaneous hippocampal seizures, hippocampal electroencephalography (EEG) power, fast ripples (FRs) and behavior in the open field test was evaluated. Finally, animals received prolonged treatment with clozapine for 3 days and the effect on seizures was monitored. RESULTS Treatment with both CNO and clozapine resulted in a robust suppression of hippocampal seizures for at least 15 hours only in DREADD-expressing animals. Moreover, total EEG power and the number of FRs were significantly reduced. CNO and/or clozapine had no effects on interictal hippocampal EEG, seizures, or locomotion/anxiety in the open field test in non-DREADD epileptic IHKA mice. Repeated clozapine treatment every 8 hours for 3 days resulted in almost complete seizure suppression in DREADD animals. SIGNIFICANCE This study shows the potency of chemogenetics to robustly and sustainably suppress spontaneous epileptic seizures and pave the way for an epilepsy therapy in which a systemically administered exogenous drug selectively modulates specific cell types in a seizure network, leading to a potent seizure suppression devoid of the typical drug-related side effects.
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Affiliation(s)
- Jana Desloovere
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium
| | - Paul Boon
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium
| | - Lars E Larsen
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium.,Medical Image and Signal Processing, Department of Electronics and Information Systems, Ghent University, Ghent, Belgium
| | - Caroline Merckx
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium.,Laboratory for Neuropathology, Department of Neurology, Ghent University, Ghent, Belgium
| | | | - Chris Van den Haute
- Laboratory for Neurobiology and Gene Therapy, Centre for Molecular Medicine and Leuven Brain Institute, KU Leuven, Leuven, Belgium.,Leuven Viral Vector Core, Centre for Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Veerle Baekelandt
- Laboratory for Neurobiology and Gene Therapy, Centre for Molecular Medicine and Leuven Brain Institute, KU Leuven, Leuven, Belgium
| | - Dimitri De Bundel
- Research Group Experimental Pharmacology, Department of Pharmaceutical Sciences, Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Evelien Carrette
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium
| | - Jean Delbeke
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium
| | - Alfred Meurs
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium
| | - Kristl Vonck
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium
| | - Wytse Wadman
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium
| | - Robrecht Raedt
- 4Brain, Department of Neurology, Ghent University, Ghent, Belgium
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48
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Campus P, Covelo IR, Kim Y, Parsegian A, Kuhn BN, Lopez SA, Neumaier JF, Ferguson SM, Solberg Woods LC, Sarter M, Flagel SB. The paraventricular thalamus is a critical mediator of top-down control of cue-motivated behavior in rats. eLife 2019; 8:e49041. [PMID: 31502538 PMCID: PMC6739869 DOI: 10.7554/elife.49041] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 08/15/2019] [Indexed: 11/13/2022] Open
Abstract
Cues in the environment can elicit complex emotional states, and thereby maladaptive behavior, as a function of their ascribed value. Here we capture individual variation in the propensity to attribute motivational value to reward-cues using the sign-tracker/goal-tracker animal model. Goal-trackers attribute predictive value to reward-cues, and sign-trackers attribute both predictive and incentive value. Using chemogenetics and microdialysis, we show that, in sign-trackers, stimulation of the neuronal pathway from the prelimbic cortex (PrL) to the paraventricular nucleus of the thalamus (PVT) decreases the incentive value of a reward-cue. In contrast, in goal-trackers, inhibition of the PrL-PVT pathway increases both the incentive value and dopamine levels in the nucleus accumbens shell. The PrL-PVT pathway, therefore, exerts top-down control over the dopamine-dependent process of incentive salience attribution. These results highlight PrL-PVT pathway as a potential target for treating psychopathologies associated with the attribution of excessive incentive value to reward-cues, including addiction.
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Affiliation(s)
- Paolo Campus
- Molecular and Behavioral Neuroscience InstituteUniversity of MichiganAnn ArborUnited States
| | - Ignacio R Covelo
- Molecular and Behavioral Neuroscience InstituteUniversity of MichiganAnn ArborUnited States
| | - Youngsoo Kim
- Department of PsychologyUniversity of MichiganAnn ArborUnited States
| | - Aram Parsegian
- Molecular and Behavioral Neuroscience InstituteUniversity of MichiganAnn ArborUnited States
| | - Brittany N Kuhn
- Neuroscience Graduate ProgramUniversity of MichiganAnn ArborUnited States
| | - Sofia A Lopez
- Neuroscience Graduate ProgramUniversity of MichiganAnn ArborUnited States
| | - John F Neumaier
- Department of Psychiatry and Behavioral SciencesUniversity of WashingtonSeattleUnited States
| | - Susan M Ferguson
- Department of Psychiatry and Behavioral SciencesUniversity of WashingtonSeattleUnited States
| | - Leah C Solberg Woods
- Department of Internal Medicine, Section on Molecular MedicineWake Forest School of MedicineWinston-SalemUnited States
| | - Martin Sarter
- Department of PsychologyUniversity of MichiganAnn ArborUnited States
- Neuroscience Graduate ProgramUniversity of MichiganAnn ArborUnited States
| | - Shelly B Flagel
- Molecular and Behavioral Neuroscience InstituteUniversity of MichiganAnn ArborUnited States
- Department of PsychiatryUniversity of MichiganAnn ArborUnited States
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Alterations in the functional brain network in a rat model of epileptogenesis: A longitudinal resting state fMRI study. Neuroimage 2019; 202:116144. [PMID: 31473355 DOI: 10.1016/j.neuroimage.2019.116144] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 08/13/2019] [Accepted: 08/28/2019] [Indexed: 11/21/2022] Open
Abstract
Epilepsy is a neurological disorder characterized by recurrent epileptic seizures. Electrophysiological and neuroimaging studies in patients with epilepsy suggest that abnormal functional brain networks play a role in the development of epilepsy, i.e. epileptogenesis, resulting in the generation of spontaneous seizures and cognitive impairment. In this longitudinal study, we investigated changes in functional brain networks during epileptogenesis in the intraperitoneal kainic acid (IPKA) rat model of temporal lobe epilepsy (TLE) using resting state functional magnetic resonance imaging (rsfMRI) and graph theory. Additionally, we investigated whether these changes are related to the frequency of occurrence of spontaneous epileptic seizures in the chronic phase of epilepsy. Using a 7T MRI system, rsfMRI images were acquired under medetomidine anaesthesia before and 1, 3, 6, 10 and 16 weeks after status epilepticus (SE) induction in 20 IPKA animals and 7 healthy control animals. To obtain a functional network, correlation between fMRI time series of 38 regions of interest (ROIs) was calculated. Then, several graph theoretical network measures were calculated to describe and quantify the network changes. At least 17 weeks post-SE, IPKA animals were implanted with electrodes in the left and right dorsal hippocampus, EEG was measured for 7 consecutive days and spontaneous seizures were counted. Our results show that correlation coefficients of fMRI time series shift to lower values during epileptogenesis, indicating weaker whole brain network connections. Segregation and integration in the functional brain network also decrease, indicating a lower local interconnectivity and a lower overall communication efficiency. Secondly, this study demonstrates that the largest decrease in functional connectivity is observed for the retrosplenial cortex. Finally, post-SE changes in functional connectivity, segregation and integration are correlated with seizure frequency in the IPKA rat model.
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50
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Shah NM, Imami N, Kelleher P, Barclay WS, Johnson MR. Pregnancy-related immune suppression leads to altered influenza vaccine recall responses. Clin Immunol 2019; 208:108254. [PMID: 31470087 DOI: 10.1016/j.clim.2019.108254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 08/17/2019] [Accepted: 08/26/2019] [Indexed: 01/12/2023]
Abstract
Pregnancy is a risk factor for severe influenza infection. Despite achieving seroprotective antibody titres post immunisation fewer pregnant women experience a reduction in influenza-like illness compared to non-pregnant cohorts. This may be due to the effects that immune-modulation in pregnancy has on vaccine efficacy leading to a less favourable immunologic response. To understand this, we investigated the antigen-specific cellular responses and leukocyte phenotype in pregnant and non-pregnant women who achieved seroprotection post immunisation. We show that pregnancy is associated with better antigen-specific inflammatory (IFN-γ) responses and an expansion of central memory T cells (Tcm) post immunisation, but low-level pregnancy-related immune regulation (HLA-G, PIBF) and associated reduced B-cell antibody maintenance (TGF-β) suggest poor immunologic responses compared to the non-pregnant. Thus far, studies of influenza vaccine immunogenicity have focused on the induction of antibodies but understanding additional vaccine-related cellular responses is needed to fully appreciate how pregnancy impacts on vaccine effectiveness.
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Affiliation(s)
- Nishel M Shah
- Department of Surgery and Cancer, Imperial College London, Chelsea and Westminster Hospital, London SW10 9NH, United Kingdom.
| | - Nesrina Imami
- Department of Medicine, Imperial College London, Chelsea and Westminster Hospital, London SW10 9NH, United Kingdom
| | - Peter Kelleher
- Department of Medicine, Imperial College London, Chelsea and Westminster Hospital, London SW10 9NH, United Kingdom
| | - Wendy S Barclay
- Department of Medicine, Imperial College London, Chelsea and Westminster Hospital, London SW10 9NH, United Kingdom
| | - Mark R Johnson
- Department of Surgery and Cancer, Imperial College London, Chelsea and Westminster Hospital, London SW10 9NH, United Kingdom
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