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  1. Article ; Online: First-Principles Study of Anharmonic Lattice Dynamics in Low Thermal Conductivity AgCrSe_{2}: Evidence for a Large Resonant Four-Phonon Scattering.

    Xie, L / Feng, J H / Li, R / He, J Q

    Physical review letters

    2021  Volume 125, Issue 24, Page(s) 245901

    Abstract: We report a study of the anharmonic lattice dynamics in low lattice thermal conductivity (κ_{l}) material AgCrSe_{2} by many-body perturbation theory. We demonstrate surprisingly giant four-phonon scattering exclusive for the heat-carrying transverse ... ...

    Abstract We report a study of the anharmonic lattice dynamics in low lattice thermal conductivity (κ_{l}) material AgCrSe_{2} by many-body perturbation theory. We demonstrate surprisingly giant four-phonon scattering exclusive for the heat-carrying transverse acoustic phonons due to large quartic anharmonicity and nondispersive phonon band structure, which lead to four-phonon Fermi resonance and breaks the classical τ^{-1}∼ω^{m}T^{n} relation for phonon-phonon interactions. This strong resonant scattering extends over the Brillouin zone and substantially suppresses the thermal transport, even down to a low temperature of 100 K. The present results provide fundamental insights into the four-phonon resonant dynamics in the low-κ_{l} system with flat phonon dispersions, i.e., cuprous halides and skutterudites.
    Language English
    Publishing date 2021-01-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.125.245901
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Effect of dietary taurine supplementation on metabolome variation in plasma of Nile tilapia.

    Shen, G P / Ding, Z N / Dai, T / Feng, J H / Dong, J Y / Xia, F / Xu, J J / Ye, J D

    Animal : an international journal of animal bioscience

    2021  Volume 15, Issue 3, Page(s) 100167

    Abstract: Taurine has been considered as an essential nutrient for many aquaculture species. While dietary taurine supplementation is highly recommended, novelty studies on taurine metabolism in fish are needed. The present study aimed to provide insight into the ... ...

    Abstract Taurine has been considered as an essential nutrient for many aquaculture species. While dietary taurine supplementation is highly recommended, novelty studies on taurine metabolism in fish are needed. The present study aimed to provide insight into the molecular mechanisms involved in multiple metabolome changes in Nile tilapia (Oreochromis niloticus) by studying plasma metabolic profile changes in response to graded levels of dietary taurine supplementation. The analysis used proton nuclear magnetic resonance-based metabolomics. Four groups of tilapias were fed with four diets supplemented with 0.0, 0.4, 0.8 and 1.2% taurine for 84 days. Fish plasma was sampled at multiple time points to provide an accurate snapshot of specific metabolic profiles during growth. Under the effect of taurine supplementation, 21 and 12 metabolites in tilapia plasma shown significant changes in terms of time-dependence and diet-dependence, respectively. These metabolic changes in tilapia plasma were mainly associated with energy and amino acid metabolism, lipids, nucleotides and protein metabolism. The results indicate that 0.8% taurine supplementation could significantly improve the carbohydrate synthesis, protein digestion and absorption, and fat deposition of tilapia and thereby promoted growth and development of tilapia.
    MeSH term(s) Animal Feed/analysis ; Animals ; Cichlids ; Diet/veterinary ; Dietary Supplements ; Metabolome ; Plasma ; Taurine
    Chemical Substances Taurine (1EQV5MLY3D)
    Language English
    Publishing date 2021-01-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2257920-5
    ISSN 1751-732X ; 1751-7311
    ISSN (online) 1751-732X
    ISSN 1751-7311
    DOI 10.1016/j.animal.2020.100167
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Effect of dietary taurine supplementation on metabolome variation in plasma of Nile tilapia

    Shen, G.P / Ding, Z.N / Dai, T / Feng, J.H / Dong, J.Y / Xia, F / Xu, J.J / Ye, J.D

    Animal. 2021 Mar., v. 15, no. 3

    2021  

    Abstract: Taurine has been considered as an essential nutrient for many aquaculture species. While dietary taurine supplementation is highly recommended, novelty studies on taurine metabolism in fish are needed. The present study aimed to provide insight into the ... ...

    Abstract Taurine has been considered as an essential nutrient for many aquaculture species. While dietary taurine supplementation is highly recommended, novelty studies on taurine metabolism in fish are needed. The present study aimed to provide insight into the molecular mechanisms involved in multiple metabolome changes in Nile tilapia (Oreochromis niloticus) by studying plasma metabolic profile changes in response to graded levels of dietary taurine supplementation. The analysis used proton nuclear magnetic resonance-based metabolomics. Four groups of tilapias were fed with four diets supplemented with 0.0, 0.4, 0.8 and 1.2% taurine for 84 days. Fish plasma was sampled at multiple time points to provide an accurate snapshot of specific metabolic profiles during growth. Under the effect of taurine supplementation, 21 and 12 metabolites in tilapia plasma shown significant changes in terms of time-dependence and diet-dependence, respectively. These metabolic changes in tilapia plasma were mainly associated with energy and amino acid metabolism, lipids, nucleotides and protein metabolism. The results indicate that 0.8% taurine supplementation could significantly improve the carbohydrate synthesis, protein digestion and absorption, and fat deposition of tilapia and thereby promoted growth and development of tilapia.
    Keywords Oreochromis niloticus ; absorption ; amino acid metabolism ; aquaculture ; carbohydrates ; digestion ; energy ; fish ; growth and development ; magnetism ; metabolites ; metabolome ; metabolomics ; nucleotides ; taurine
    Language English
    Dates of publication 2021-03
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2257920-5
    ISSN 1751-732X ; 1751-7311
    ISSN (online) 1751-732X
    ISSN 1751-7311
    DOI 10.1016/j.animal.2020.100167
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Effects of high ambient temperature on the community structure and composition of ileal microbiome of broilers

    Wang, X J / Chang, S S / Feng, J H / Li, X M / Ma, D D / Zhang, M H

    Poultry science. 2018 June 01, v. 97, no. 6

    2018  

    Abstract: The intestinal microbiome has been shown to influence animal nutrient metabolism and immune homeostasis. The present study aimed to examine the effect of heat stress on the intestinal microbiome of broilers using pyrosequencing technologies. Ninety-six ... ...

    Abstract The intestinal microbiome has been shown to influence animal nutrient metabolism and immune homeostasis. The present study aimed to examine the effect of heat stress on the intestinal microbiome of broilers using pyrosequencing technologies. Ninety-six Arbor Acres broiler chicks were allocated to thermoneutral control (TC; 21 ± 1°C) and high ambient temperature (HT; 31 ± 1°C) groups (6 cages of 8 birds per group), respectively, and raised in 2 controlled climate chambers from 28 to 42 d old. Genomic DNA was extracted from ileal contents isolated from 6 male broiler chicks of each group at 42 d old, and then amplified based on the V3–4 hyper-variable region of 16S rRNA. High temperature had no significant effects, but tended to influence the relative abundance of major phyla and orders in the broilers’ ileal microbiota. Analysis of linear effect size feature selection identified 9 discriminative features (genus level, linear discriminant analysis score > 3). Clostridium XIVb, Streptophyta, Faecalibacterium, Rothia, Alistipes, Azospirillum, and Oscillibacter were enriched, while Coprococcus and Streptococcus were reduced in heat-stressed broilers. High temperature significantly influenced the alpha diversity, with higher observed species (P = 0.004), whole-tree phylogenetic diversity (P = 0.002), and Chao 1 (P = 0.002), but the Pielou, Shannon, and Simpson indices were unaltered (P > 0.05), indicating that high temperature increased the ileal microbiota species richness. Based on unweighted UniFrac distance metric matrices, principal component analysis showed that the HT group formed a distinct cluster clearly set apart from the TC group. Analysis of similarity also indicated that samples within groups were more similar to each other than to any samples from other groups (R = 0.626; P = 0.004). In conclusion, high temperature influenced the bacterial composition and community structure of the ileal microbiota of broilers, specifically by increasing the species richness.
    Keywords ambient temperature ; Azospirillum ; broiler chickens ; cages ; climate ; Clostridium ; community structure ; Coprococcus ; discriminant analysis ; DNA ; heat stress ; homeostasis ; ileum ; intestinal microorganisms ; males ; metabolism ; microbiome ; phylogeny ; principal component analysis ; ribosomal RNA ; sequence analysis ; species richness ; Streptococcus
    Language English
    Dates of publication 2018-0601
    Size p. 2153-2158.
    Publishing place Poultry Science Association, Inc.
    Document type Article
    ZDB-ID 242586-5
    ISSN 1525-3171 ; 0032-5791
    ISSN (online) 1525-3171
    ISSN 0032-5791
    DOI 10.3382/ps/pey032
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  5. Article ; Online: Effects of high ambient temperature on the community structure and composition of ileal microbiome of broilers.

    Wang, X J / Feng, J H / Zhang, M H / Li, X M / Ma, D D / Chang, S S

    Poultry science

    2018  Volume 97, Issue 6, Page(s) 2153–2158

    Abstract: The intestinal microbiome has been shown to influence animal nutrient metabolism and immune homeostasis. The present study aimed to examine the effect of heat stress on the intestinal microbiome of broilers using pyrosequencing technologies. Ninety-six ... ...

    Abstract The intestinal microbiome has been shown to influence animal nutrient metabolism and immune homeostasis. The present study aimed to examine the effect of heat stress on the intestinal microbiome of broilers using pyrosequencing technologies. Ninety-six Arbor Acres broiler chicks were allocated to thermoneutral control (TC; 21 ± 1°C) and high ambient temperature (HT; 31 ± 1°C) groups (6 cages of 8 birds per group), respectively, and raised in 2 controlled climate chambers from 28 to 42 d old. Genomic DNA was extracted from ileal contents isolated from 6 male broiler chicks of each group at 42 d old, and then amplified based on the V3-4 hyper-variable region of 16S rRNA. High temperature had no significant effects, but tended to influence the relative abundance of major phyla and orders in the broilers' ileal microbiota. Analysis of linear effect size feature selection identified 9 discriminative features (genus level, linear discriminant analysis score > 3). Clostridium XIVb, Streptophyta, Faecalibacterium, Rothia, Alistipes, Azospirillum, and Oscillibacter were enriched, while Coprococcus and Streptococcus were reduced in heat-stressed broilers. High temperature significantly influenced the alpha diversity, with higher observed species (P = 0.004), whole-tree phylogenetic diversity (P = 0.002), and Chao 1 (P = 0.002), but the Pielou, Shannon, and Simpson indices were unaltered (P > 0.05), indicating that high temperature increased the ileal microbiota species richness. Based on unweighted UniFrac distance metric matrices, principal component analysis showed that the HT group formed a distinct cluster clearly set apart from the TC group. Analysis of similarity also indicated that samples within groups were more similar to each other than to any samples from other groups (R = 0.626; P = 0.004). In conclusion, high temperature influenced the bacterial composition and community structure of the ileal microbiota of broilers, specifically by increasing the species richness.
    MeSH term(s) Animals ; Bacteria/classification ; Chickens/microbiology ; Gastrointestinal Microbiome ; High-Throughput Nucleotide Sequencing ; Hot Temperature ; Male ; RNA, Bacterial/analysis ; RNA, Ribosomal, 16S/analysis ; Stress, Physiological
    Chemical Substances RNA, Bacterial ; RNA, Ribosomal, 16S
    Language English
    Publishing date 2018-03-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 242586-5
    ISSN 1525-3171 ; 0032-5791
    ISSN (online) 1525-3171
    ISSN 0032-5791
    DOI 10.3382/ps/pey032
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Real-time variations in body temperature of laying hens with increasing ambient temperature at different relative humidity levels

    Chang, Y / Diao, H J / Feng, J H / Li, M / Li, X / Peng, Q Q / Wang, X J / Zhang, M H / Zhang, S S / Zhou, Y

    Poultry science. 2018 Sept. 01, v. 97, no. 9

    2018  

    Abstract: In order to measure the real-time variations in body temperature with increasing ambient temperature (AT) at different relative humidity (RH) levels, 60 Jinghong laying hens (35-wk-old) were raised in 3 controlled climate chambers (10 cages with 2 birds ... ...

    Abstract In order to measure the real-time variations in body temperature with increasing ambient temperature (AT) at different relative humidity (RH) levels, 60 Jinghong laying hens (35-wk-old) were raised in 3 controlled climate chambers (10 cages with 2 birds per chamber). The RH was fixed at one of 3 levels comprising 35, 50, or 85%, and the AT was increased gradually by 1 degree per 0.5 h from 18 to 35°C in the 3 chambers. The core temperature (CT) and surface temperature (ST) of the hens, as well as the AT in the 3 chambers were recorded at 3 min intervals using mini temperature data loggers. The data were analyzed with a broken-line model to determine the inflection point temperature (IPT, the certain AT above which the body temperature of the hens started to change). The experiment was repeated 3 times on 3 d. The IPTs of the laying hens were 23.89 and 25.46°C based on ST and CT at 50% RH, respectively, which indicated that the upper critical temperature of the thermoneutral zone of hens may be a specific temperature between 23.89°C and 25.46°C. The IPTs of the laying hens were 24.11 and 25.20°C based on ST and CT at RH 35%, respectively, and 21.93 and 24.45°C at RH 85%. The RH significantly affected the IPT of ST (P < 0.001). The IPTs were higher at 35 and 50% RH than that at 85% RH (P < 0.05). The coefficients of variation for the IPTs between individual hens were 2.96 to 4.51, and coefficients of variation for the IPTs for the same bird measured on 3 d were 0.69 to 1.59, thereby indicating that this method for estimating the IPTs of hens is stable and repeatable, although more samples are needed. In conclusion, our results indicate that analyzing the real-time variation in body temperature with increasing AT is a reliable method for estimating the IPT to provide an important reference for regulating the temperature in poultry houses.
    Keywords ambient temperature ; body temperature ; cages ; climate ; data analysis ; laying hens ; microprocessors ; models ; poultry housing ; relative humidity ; surface temperature ; thermometers
    Language English
    Dates of publication 2018-0901
    Size p. 3119-3125.
    Publishing place Poultry Science Association, Inc.
    Document type Article
    ZDB-ID 242586-5
    ISSN 1525-3171 ; 0032-5791
    ISSN (online) 1525-3171
    ISSN 0032-5791
    DOI 10.3382/ps/pey184
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: The influences of ambient temperature and crude protein levels on performance and serum biochemical parameters in broilers.

    Liu, Q W / Feng, J H / Chao, Z / Chen, Y / Wei, L M / Wang, F / Sun, R P / Zhang, M H

    Journal of animal physiology and animal nutrition

    2016  Volume 100, Issue 2, Page(s) 301–308

    Abstract: This study was undertaken to investigate the effects of ambient temperature, crude protein levels and their interaction on performance and serum biochemical parameters of broiler chickens. A total of 216 Arbor Acre broiler chickens (108 males and 108 ... ...

    Abstract This study was undertaken to investigate the effects of ambient temperature, crude protein levels and their interaction on performance and serum biochemical parameters of broiler chickens. A total of 216 Arbor Acre broiler chickens (108 males and 108 females) were used in a 2 × 3 factorial arrangement and randomly reared at two temperatures (normal temperature: 23 °C; daily cyclic high temperature: 28-32 °C) and fed on three diets with different crude protein levels (153.3, 183.3 or 213.3 g/kg, with constant essential amino acids) from 28 to 42 days of age. Daily cyclic high ambient temperature decreased final body weight, average daily weight gain, average daily feed intake and serum total protein contents (p < 0.001, p < 0.001, p < 0.001, p = 0.008 respectively), but increased feed/gain, mortality, respiratory rate, rectal temperature, serum uric acid contents and serum creatine kinase activity (p = 0.008, p = 0.003, p < 0.0001, p < 0.0001, p < 0.0001, p = 0.003 respectively), irrespective of crude protein levels. At the ambient temperature, reducing crude protein levels resulted in an increase in feed/gain (p < 0.001), but a decrease in serum total protein and uric acid contents. Only serum creatine kinase activity in broiler chickens was interacted by daily cyclic high ambient temperature and dietary crude protein levels (p = 0.003). These results indicated that daily cyclic high ambient temperature had a great effect on performance and serum biochemical parameters in broiler chickens, whereas dietary crude protein levels affected them partially.
    MeSH term(s) Animal Feed/analysis ; Animal Nutritional Physiological Phenomena ; Animals ; Body Temperature ; Chickens/blood ; Chickens/growth & development ; Diet/veterinary ; Dietary Proteins/metabolism ; Female ; Housing, Animal ; Male ; Respiration ; Temperature
    Chemical Substances Dietary Proteins
    Language English
    Publishing date 2016-04
    Publishing country Germany
    Document type Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 232729-6
    ISSN 1439-0396 ; 0044-3565 ; 0931-2439
    ISSN (online) 1439-0396
    ISSN 0044-3565 ; 0931-2439
    DOI 10.1111/jpn.12368
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Real-time variations in body temperature of laying hens with increasing ambient temperature at different relative humidity levels.

    Chang, Y / Wang, X J / Feng, J H / Zhang, M H / Diao, H J / Zhang, S S / Peng, Q Q / Zhou, Y / Li, M / Li, X

    Poultry science

    2018  Volume 97, Issue 9, Page(s) 3119–3125

    Abstract: In order to measure the real-time variations in body temperature with increasing ambient temperature (AT) at different relative humidity (RH) levels, 60 Jinghong laying hens (35-wk-old) were raised in 3 controlled climate chambers (10 cages with 2 birds ... ...

    Abstract In order to measure the real-time variations in body temperature with increasing ambient temperature (AT) at different relative humidity (RH) levels, 60 Jinghong laying hens (35-wk-old) were raised in 3 controlled climate chambers (10 cages with 2 birds per chamber). The RH was fixed at one of 3 levels comprising 35, 50, or 85%, and the AT was increased gradually by 1 degree per 0.5 h from 18 to 35°C in the 3 chambers. The core temperature (CT) and surface temperature (ST) of the hens, as well as the AT in the 3 chambers were recorded at 3 min intervals using mini temperature data loggers. The data were analyzed with a broken-line model to determine the inflection point temperature (IPT, the certain AT above which the body temperature of the hens started to change). The experiment was repeated 3 times on 3 d. The IPTs of the laying hens were 23.89 and 25.46°C based on ST and CT at 50% RH, respectively, which indicated that the upper critical temperature of the thermoneutral zone of hens may be a specific temperature between 23.89°C and 25.46°C. The IPTs of the laying hens were 24.11 and 25.20°C based on ST and CT at RH 35%, respectively, and 21.93 and 24.45°C at RH 85%. The RH significantly affected the IPT of ST (P < 0.001). The IPTs were higher at 35 and 50% RH than that at 85% RH (P < 0.05). The coefficients of variation for the IPTs between individual hens were 2.96 to 4.51, and coefficients of variation for the IPTs for the same bird measured on 3 d were 0.69 to 1.59, thereby indicating that this method for estimating the IPTs of hens is stable and repeatable, although more samples are needed. In conclusion, our results indicate that analyzing the real-time variation in body temperature with increasing AT is a reliable method for estimating the IPT to provide an important reference for regulating the temperature in poultry houses.
    MeSH term(s) Animals ; Body Temperature ; Chickens/physiology ; Female ; Hot Temperature/adverse effects ; Humidity
    Language English
    Publishing date 2018-11-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 242586-5
    ISSN 1525-3171 ; 0032-5791
    ISSN (online) 1525-3171
    ISSN 0032-5791
    DOI 10.3382/ps/pey184
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: [Establishment of a cell strain from human kidney cell carcinoma KCC-853].

    Feng, J H

    Zhonghua bing li xue za zhi = Chinese journal of pathology

    1988  Volume 17, Issue 2, Page(s) 102–104

    MeSH term(s) Animals ; Carcinoma, Renal Cell/pathology ; Cell Line ; Female ; Humans ; Kidney Neoplasms/pathology ; Mice ; Mice, Inbred BALB C ; Middle Aged ; Mitotic Index ; Neoplasm Transplantation
    Language Chinese
    Publishing date 1988-06
    Publishing country China
    Document type English Abstract ; Journal Article
    ZDB-ID 784533-9
    ISSN 0529-5807
    ISSN 0529-5807
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Expression, purification, and S-nitrosylation of recombinant histone deacetylase 8 in Escherichia coli.

    Feng, J H / Jing, F B / Fang, H / Gu, L C / Xu, W F

    Bioscience trends

    2011  Volume 5, Issue 1, Page(s) 17–22

    Abstract: Histone deacetylase (HDAC) 8 is a zinc ion dependent enzyme involved in removing the acetyl group from the core histones and other proteins which belong to Class I HDACs. It was reported that nitric oxide (NO) is a key regulator of HDAC function and S- ... ...

    Abstract Histone deacetylase (HDAC) 8 is a zinc ion dependent enzyme involved in removing the acetyl group from the core histones and other proteins which belong to Class I HDACs. It was reported that nitric oxide (NO) is a key regulator of HDAC function and S-nitrosylation of HDAC2 induces chromatin remodelling in neurons. This work reports the successful recombinant expression of human HDAC8 in Escherichia coli with two plasmids and the purification and S-nitrosylation in vitro. It was found that HDAC8 can be S-nitrosylated by the NO donor S-nitrosoglutathione (GSNO) in vitro, and the activity of HDAC8 was significantly inhibited when incubated with GSNO and S-nitrosocysteine in a time- and dosage-dependent manner, but sodium nitroprusside (SNP), and dithiothreitol cannot reverse this inhibition. These observations support and extend the concept that NO may regulate HDAC8 function by S-nitrosylation.
    MeSH term(s) Blotting, Western ; Cysteine/analogs & derivatives ; Cysteine/chemical synthesis ; Cysteine/metabolism ; DNA Primers/genetics ; Electrophoresis, Polyacrylamide Gel ; Escherichia coli ; Histone Deacetylases/isolation & purification ; Histone Deacetylases/metabolism ; Humans ; In Vitro Techniques ; Nitric Oxide/metabolism ; Plasmids/genetics ; Recombinant Proteins/metabolism ; Repressor Proteins/isolation & purification ; Repressor Proteins/metabolism ; S-Nitrosoglutathione/chemical synthesis ; S-Nitrosoglutathione/metabolism ; S-Nitrosothiols/chemical synthesis ; S-Nitrosothiols/metabolism
    Chemical Substances DNA Primers ; Recombinant Proteins ; Repressor Proteins ; S-Nitrosothiols ; Nitric Oxide (31C4KY9ESH) ; S-Nitrosoglutathione (57564-91-7) ; S-nitrosocysteine (926P2322P4) ; HDAC8 protein, human (EC 3.5.1.98) ; Histone Deacetylases (EC 3.5.1.98) ; Cysteine (K848JZ4886)
    Language English
    Publishing date 2011-03-11
    Publishing country Japan
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2543899-2
    ISSN 1881-7823 ; 1881-7815
    ISSN (online) 1881-7823
    ISSN 1881-7815
    DOI 10.5582/bst.2011.v5.1.17
    Database MEDical Literature Analysis and Retrieval System OnLINE

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