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1.
Int J Mol Sci ; 24(8)2023 Apr 21.
Artículo en Inglés | MEDLINE | ID: mdl-37108828

RESUMEN

Probiotics and synbiotics supplementation have been shown to play potential roles in animal production. The present study aimed to evaluate the effects of dietary probiotics and synbiotics supplementation to sows during gestation and lactation and to offspring pigs (sow-offspring) on offspring pigs' growth performance and meat quality. Sixty-four healthy Bama mini-pigs were selected and randomly allocated into four groups after mating: the control, antibiotics, probiotics, and synbiotics groups. After weaning, two offspring pigs per litter were selected, and four offspring pigs from two litters were merged into one pen. The offspring pigs were fed a basal diet and the same feed additive according to their corresponding sows, representing the control group (Con group), sow-offspring antibiotics group (S-OA group), sow-offspring probiotics group (S-OP group), and sow-offspring synbiotics group (S-OS group). Eight pigs per group were euthanized and sampled at 65, 95, and 125 d old for further analyses. Our findings showed that probiotics supplementation in sow-offspring diets promoted growth and feed intake of offspring pigs during 95-125 d old. Moreover, sow-offspring diets supplemented with probiotics and synbiotics altered meat quality (meat color, pH45min, pH24h, drip loss, cooking yield, and shear force), plasma UN and AMM levels, and gene expressions associated with muscle-fiber types (MyHCI, MyHCIIa, MyHCIIx, and MyHCIIb) and muscle growth and development (Myf5, Myf6, MyoD, and MyoG). This study provides a theoretical basis for the maternal-offspring integration regulation of meat quality by dietary probiotics and synbiotics supplementation.


Asunto(s)
Probióticos , Simbióticos , Femenino , Porcinos , Animales , Porcinos Enanos , Suplementos Dietéticos/análisis , Dieta/veterinaria , Probióticos/farmacología , Carne/análisis , Lactancia , Alimentación Animal/análisis
2.
Artículo en Inglés | MEDLINE | ID: mdl-35960652

RESUMEN

During an investigation of rare actinobacteria, isolate SC076T was isolated from a soil sample collected from Sichang Island, Chonburi Province, Thailand. The strain showed the highest 16S rRNA gene similarity to Saccharothrix australiensis DSM 43800T (98.6%) and Saccharothrix espanaensis DSM 44229T (98.6%). The zigzag morphology of the spore chain was observed on the aerial mycelia. meso-Diaminopimelic acid was detected in the peptidoglycan. Whole-cell sugars contained rhamnose, ribose, mannose glucose and galactose. Polar lipids were phosphatidylethanolamine, hydroxyphosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol mannoside, phosphatidylinositol, unidentified ninhydrin-positive glycolipid, unidentified glycolipid and four unidentified lipids. The menaquinones were MK-9(H8), MK-9(H4), MK-9(H2) and MK-9(H0). The predominant fatty acids were iso-C16 : 0, iso-C15 : 0 and anteiso-C17 : 0. The draft genome of SC076T was 8040245 bp with a G+C content of 72.5 mol%. The results of genomic analysis between strain SC076T and the related type strains showed that the digital DNA-DNA hybridization and average nucleotide identity values among the strains were 23.6-32.8% and 77.7-86.8 %, respectively, which are lower than the thresholds used to distinguish strains from others of the same species. Based on the taxonomic evidence, strain SC076T represents a novel species of the genus Saccharothrix for which the name Saccharothrix obliqua sp. nov. is proposed. The type strain is SC076T (=TBRC 14540T=NBRC 115117T).


Asunto(s)
Actinomycetales , Suelo , Técnicas de Tipificación Bacteriana , Composición de Base , ADN Bacteriano/genética , Ácidos Grasos/química , Glucolípidos/análisis , Fosfolípidos/análisis , Filogenia , ARN Ribosómico 16S/genética , Análisis de Secuencia de ADN , Microbiología del Suelo , Tailandia
3.
J Appl Microbiol ; 133(2): 515-528, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35396768

RESUMEN

AIM: Probiotics could improve the health, growth, and development of host or their foetuses/offspring via regulating gut microbiota. The present study was conducted to determine the effects of maternal probiotics supplementation on gut microbiota and metabolites of sows and their suckling piglets, as well as plasma biochemical parameters, oxidative/anti-oxidative indexes, and inflammatory cytokine levels of suckling piglets. METHODS AND RESULTS: A total of 32 pregnant Bama mini-pigs were selected and randomly divided into two groups. The sows were fed a basal diet (control group) or a basal diet supplemented with probiotics (probiotics group) from mating to day 21 of lactation. Samples from sows were collected on day 105 of pregnancy and day 21 of lactation and from piglets on day 21 of lactation. The results showed that probiotics supplementation increased the faecal abundances of Ruminococcus, Bacteroides, and Anaeroplasma and decreased Tenericutes on day 105 of pregnancy while increased the abundances of Actinobacteria and Anaerostipes and decreased Proteobacteria and Desulfovibrio on day 21 of lactation. In addition, probiotics supplementation decreased the faecal levels of tryptamine, putrescine, and cadaverine on day 105 of pregnancy and isovalerate and skatole on day 21 of lactation while increased butyrate level on day 21 of lactation. Further studies showed that maternal probiotics supplementation decreased the plasma levels of AMM, TC, LDL-C, Ala, Tau, MDA, H2 O2 , IL-1ß, IL-2, IL-6, and IFN-α of suckling piglets. Moreover, maternal probiotics supplementation increased the abundances of Deferribacteres, Fusobacteria, and Fusobacterium while decreased Anaerostipes in piglet's colon. Spearman's correlation analysis revealed a potential link between gut microbiota alterations and their metabolites. CONCLUSIONS: Dietary probiotics supplementation during pregnancy and lactation periods could improve sow status, alleviate oxidative stress and inflammation response, and improve nutrient metabolism of piglets by altering the gut microbiota. SIGNIFICANCE AND IMPACT OF THE STUDY: The probiotics alter maternal and offspring's gut microbiota involving in offspring's physiological and metabolic changes, and present a new perspective that the effects of gut microbiota changes induced by probiotics supplementation will help in addressing the growth and development and health problem of their foetuses/offspring.


Asunto(s)
Microbioma Gastrointestinal , Probióticos , Alimentación Animal/análisis , Animales , Animales Lactantes , Antioxidantes/farmacología , Dieta/veterinaria , Suplementos Dietéticos/análisis , Femenino , Lactancia , Embarazo , Probióticos/análisis , Porcinos , Porcinos Enanos
4.
BMC Vet Res ; 18(1): 385, 2022 Nov 03.
Artículo en Inglés | MEDLINE | ID: mdl-36324169

RESUMEN

BACKGROUND: Maternal gut microbiota and metabolites are associated with their offspring's health. Our previous study showed that maternal body fat percentage increased from days 45 to 110 of gestation in a Huanjiang mini-pig model. Thus, this study aimed to investigate the changes in gut microbiota composition and microbial metabolite profile of sows from days 45 to 110 of gestation. RESULTS: Twenty-four Huanjiang mini-pigs with average body weight were assigned for sample collection during early- (day 45 of pregnancy), mid- (day 75 of pregnancy), and late-pregnancy (day 110 of pregnancy). The results showed that the relative abundances of Clostridium_sensu_stricto_1, Romboutsia, Turicibacter, and Streptococcus in jejunal contents were higher at day 110 than those at day 45 or 75 of gestation. In the ileum, the relative abundance of Streptococcus was higher (P < 0.05) at day 110 of gestation, as well as the metabolism function of the jejunal and ileal microbiota. The ileal butyrate and acetate concentrations were higher at days 45 and 110 of gestation, respectively. In the colon, the concentrations of cadaverine and spermine were higher (P < 0.05) at days 45 and 110 of gestation, respectively. Metabolomic analyses demonstrated that the metabolic pathways, including D-glutamine and D-glutamate metabolism, phenylalanine/tyrosine/tryptophan biosynthesis, and alanine/aspartate/glutamate metabolism changed during gestation. CONCLUSION: Collectively, our results showed that gut microbiota composition and microbial metabolites changed dramatically from early to late pregnancy in a Huanjiang mini-pig model. These findings will provide new targets in formulating maternal nutritional interventions to alleviate the adverse effects during pregnancy on offspring health outcomes.


Asunto(s)
Microbioma Gastrointestinal , Microbiota , Porcinos , Animales , Embarazo , Femenino , Porcinos Enanos , Butiratos , Metaboloma
5.
Int J Mol Sci ; 23(24)2022 Dec 12.
Artículo en Inglés | MEDLINE | ID: mdl-36555421

RESUMEN

To investigate developmental changes in immunity and different responses to weaning stress of piglets from different breeds during suckling and weaning periods, a total of 30 litters of Taoyuan black (TB) piglets, Xiangcun black (XB) piglets, and Duroc (DR) piglets (ten litters per breed) were selected at 1, 10, 21, and 24 days of age, respectively. The results showed that the liver index of TB piglets was higher at 10 days of age than that of the other days of age and breeds. Regardless of the days of age, TB and XB piglets had a higher plasma IgA level and lower ileal IgM level than in the DR piglets, and XB piglets had a lower plasma IgG level than the other breeds. TB and XB piglets had a higher IL-6 level and lower IL-17 level in plasma at 24 days of age than DR piglets, regardless of the days of age. The ileal levels of IL-2, IL-10, IFN-γ, and TNF-α were lower in the TB and XB piglets at 24 days of age than in the DR piglets. The ileal expression levels of IRAK1, CD14, MyD88, and NF-κB were down-regulated in the TB and XB piglets at 24 days of age compared to those in the DR piglets. These findings suggest that there were differences in the development of immune function among different pig breeds. Moreover, TB and XB piglets presented stronger resistance to weaning stress than the DR piglets, which may be related to the immune regulation mediated by the MyD88/NF-κB signaling pathway.


Asunto(s)
Inmunidad , Destete , Animales , Íleon/metabolismo , Factor 88 de Diferenciación Mieloide/metabolismo , FN-kappa B/metabolismo , Porcinos
6.
J Sci Food Agric ; 102(2): 607-616, 2022 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-34151432

RESUMEN

BACKGROUND: Maternal nutrition during gestation and lactation is essential for offspring's health. The present study aimed to investigate the effects of betaine hydrochloride addition to sow diets during gestation and lactation on suckling piglet's immunity and intestine microbiota composition. Forty Bama mini-pigs were randomly allocated into two groups and fed a basal diet (control group) and a basal diet supplemented with 3.50 kg ton-1 betaine hydrochloride (betaine group) from day 3 after mating to day 21 of lactation. After 21 days of the delivery, 12 suckling piglets from each group with similar body weight were selected for sample collection. RESULTS: The results showed that maternal betaine hydrochloride addition decreased (P < 0.05) the plasma levels of interleukin (IL)-1ß, IL-2, IL-6, and tumor necrosis factor-α in suckling piglets. Furthermore, dietary betaine hydrochloride addition in sow diets increased (P < 0.05) the villus height (VH) and VH to crypt depth ratio in the jejunum and ileum of suckling piglets. In the piglets' intestinal microbiota community, the relative abundances of Roseburia (P < 0.05) and Clostridium (P = 0.059) were lower in the betaine group compared to those in the control group. Moreover, betaine hydrochloride addition in sow diets decreased the colonic tyramine (P = 0.091) and skatole (P = 0.070) concentrations in suckling piglets. CONCLUSION: Betaine hydrochloride addition in sow diets enhanced the intestinal morphology, improved immunity, and altered intestinal microbiota of suckling piglets. These findings indicated that betaine hydrochloride addition in sow diets during gestation and lactation will impact suckling piglets' health. © 2021 Society of Chemical Industry.


Asunto(s)
Betaína/metabolismo , Microbioma Gastrointestinal , Porcinos Enanos/embriología , Alimentación Animal/análisis , Animales , Animales Recién Nacidos/crecimiento & desarrollo , Animales Recién Nacidos/inmunología , Animales Recién Nacidos/microbiología , Bacterias/clasificación , Bacterias/genética , Bacterias/aislamiento & purificación , Suplementos Dietéticos/análisis , Femenino , Interleucinas/sangre , Lactancia , Masculino , Fenómenos Fisiologicos Nutricionales Maternos , Embarazo , Porcinos , Porcinos Enanos/sangre , Porcinos Enanos/inmunología , Porcinos Enanos/microbiología , Factor de Necrosis Tumoral alfa/sangre
7.
Educ Inf Technol (Dordr) ; 27(1): 1261-1286, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34257512

RESUMEN

The COVID-19 pandemic makes flipped learning more relevant to address the challenges of remote learning. Therefore, renewed attention is warranted in critically appraising the implications on which flipped learning is built. Though several studies have reviewed the flipped learning research in the past, the majority has qualitatively synthesized the flipped learning literature, thus, lacking the overall perspective provided quantitatively for appraising the existing state of affairs of flipped learning research in engineering education. This study addresses this gap by objectively mapping the conceptual, intellectual, and social structure of research development in flipped learning using a bibliometric review method. Findings reveal that flipped learning in engineering education is a relatively new field of research and in recent time it has entered into the stage of exponential growth. Findings also show the effectiveness of the flipped learning model to address the challenges of complex pedagogical applications in different fields of engineering education. This study provides a quantitative synopsis of the flipped learning literature which can be used as an anchor for future study.

8.
Appl Nurs Res ; 59: 151334, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33947506

RESUMEN

This paper, for the first time, performs a bibliometric review on work-family conflict focusing on job satisfaction and intention to quit since the inception of this concept in 1994. For analysis and graphical presentation, bibliometrix package in R software and VOSviewer software are used. Total 146 documents from Scopus database are examined in this study. The results from the analysis reveal that the number of publications on work-family conflict is recently in an ascending growth that can be characterized by low productivity, low average citations per document and rising collaboration among authors. The growth of work-family conflict literature began to increase from 2003 and the International Journal of Human Resource Management and Journal of Vocational Behaviour played significant roles. Future research areas have been identified from the results of thematic map, trend topics, bibliometric coupling, three-fields plot and co-occurrence network. It is revealed from development of topics in this literature that pay satisfaction, occupational differences, effects of burnout and organizational politics has potential literature gaps. In addition, the examination of highlighted theories and methods used in previous literature contributing in different industries shall be the propitious areas of future research apart from other research agenda as identified in this study.


Asunto(s)
Agotamiento Profesional , Satisfacción en el Trabajo , Bibliometría , Conflicto Familiar , Humanos , Intención
9.
Bull Environ Contam Toxicol ; 106(4): 707-713, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33527146

RESUMEN

In this study, we determined the effect of manure application on net nitrification rates (NNRs), heavy metal concentrations (HMCs), and abundance of ammonia-oxidizing archaea (AOA)/bacteria (AOB), and nitrite-oxidizing bacteria (NOB) in soil. HMCs were measured by atomic absorption spectroscopy. Abundance of AOA, AOB, and NOB was enumerated by q-PCR. NNRs ranged from 2.8 to 14.7 mg kg-1 h-1 and were significantly (p < 0.05) increased in manure soils as compared to control soils. NNRs were affected by pH 7 and temperature 30°C. Cd, Fe and Pb concentrations were classified as excessively polluted, moderate contamination and slight pollution, respectively, in the manure soils. NNRs and concentrations of Fe and Pb were significantly (p < 0.00) positive correlated, but Cu and Cd were significantly (p < 0.00) negative correlated with NNRs. Application of manure significantly (p < 0.05) increased HMCs (Fe, Cu, and Pb), which have indirect and direct effects on NNRs and nitrifying bacteria.


Asunto(s)
Archaea , Metales Pesados , Amoníaco , Bacterias/genética , Estiércol , Nitrificación , Oxidación-Reducción , Filogenia , Suelo , Microbiología del Suelo
10.
Environ Dev Sustain ; 23(6): 9139-9162, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33052194

RESUMEN

This work is intended to examine the effects of Bangladesh's subtropical climate on coronavirus diseases 2019 (COVID-19) transmission. Secondary data for daily meteorological variables and COVID-19 cases from March 8 to May 31, 2020, were collected from the Bangladesh Meteorological Department (BMD) and Institute of Epidemiology, Disease Control and Research (IEDCR). Distributed lag nonlinear models, Pearson's correlation coefficient and wavelet transform coherence were employed to appraise the relationship between meteorological factors and COVID-19 cases. Significant coherence between meteorological variables and COVID-19 at various time-frequency bands has been identified in this work. The results showed that the minimum (MinT) and mean temperature, wind speed (WS), relative humidity (RH) and absolute humidity (AH) had a significant positive correlation while contact transmission had no direct association with the number of COVID-19 confirmed cases. When the MinT was 18 °C, the relative risk (RR) was the highest as 1.04 (95%CI 1.01-1.06) at lag day 11. For the WS, the highest RR was 1.03 (95% CI 1.00-1.07) at lag day 0, when the WS was 21 km/h. When RH was 46%, the highest RR was 1.00 (95% CI 0.98-1.01) at lag day 14. When AH was 23 g/m3, the highest RR was 1.05 (95% CI 1.01-1.09) at lag day 14. We found a profound effect of meteorological factors on SARS-CoV-2 transmission. These results will assist policymakers to know the behavioral pattern of the SARS-CoV-2 virus against meteorological indicators and thus assist to devise an effective policy to fight against COVID-19 in Bangladesh.

11.
Appl Microbiol Biotechnol ; 104(3): 1227-1242, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31853564

RESUMEN

Maternal nutrition during late pregnancy and lactation is highly involved with the offspring's health status. The study was carried out to evaluate the effects of different ratios of methionine and cysteine (Met/Cys: 46% Met, 51% Met, 56% Met, and 62% Met; maintained with 0.78% of total sulfur-containing amino acids; details in "Materials and methods") supplements in the sows' diet from late pregnancy to lactation on offspring's plasma metabolomics and intestinal microbiota. The results revealed that the level of serum albumin, calcium, iron, and magnesium was increased in the 51% Met group compared with the 46% Met, 56% Met, and 62% Met groups. Plasma metabolomics results indicated that the higher ratios of methionine and cysteine (0.51% Met, 0.56% Met, and 0.62% Met)-supplemented groups enriched the level of hippuric acid, retinoic acid, riboflavin, and δ-tocopherol than in the 46% Met group. Furthermore, the 51% Met-supplemented group had a higher relative abundance of Firmicutes compared with the other three groups (P < 0.05), while the 62% Met-supplemented group increased the abundance of Proteobacteria compared with the other three groups (P < 0.05) in piglets' intestine. These results indicated that a diet consisting with 51% Met is the optimum Met/Cys ratio from late pregnancy to lactation can maintain the offspring's health by improving the serum biochemical indicators and altering the plasma metabolomics profile and intestinal gut microbiota composition, but higher proportion of Met/Cys may increase the possible risk to offspring's health.


Asunto(s)
Aminoácidos/administración & dosificación , Aminoácidos/sangre , Suplementos Dietéticos/análisis , Microbioma Gastrointestinal , Lactancia , Azufre/administración & dosificación , Alimentación Animal/análisis , Animales , Animales Recién Nacidos/fisiología , Cisteína/administración & dosificación , Cisteína/sangre , Femenino , Metabolómica , Metionina/administración & dosificación , Metionina/sangre , Embarazo , Porcinos
12.
Mediators Inflamm ; 2020: 8829072, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33162832

RESUMEN

This study was conducted to analyze plasma reproductive hormone and biochemical parameter changes, as well as fecal microbiota composition and metabolites in sows, at different pregnancy and lactation stages, using Bama mini pig as an experimental animal model. We found that plasma prolactin (PRL), progesterone, follicle-stimulating hormone (FSH), and estrogen levels decreased from day 45 to day 105 of pregnancy. Plasma total protein and albumin levels were lower in pregnant sows, while glucose, urea nitrogen, total cholesterol, and high-density lipoprotein-cholesterol, as well as fecal acetate, butyrate, valerate, total short-chain fatty acids, skatole, and tyramine levels, were higher in lactating sows. Interestingly, the lactating sows showed lower α-diversity and Spirochaetes and Verrucomicrobia relative abundances, while pregnant sows showed a higher Proteobacteria relative abundance. Notably, the Akkermansia relative abundance was highest on day 7 of lactation. Spearman analysis showed a positive correlation between plasma triglyceride and cholinesterase levels and Akkermansia and Streptococcus relative abundances. Moreover, Oscillospira and Desulfovibrio relative abundances were also positively correlated with plasma FSH, LH, and E2 levels, as well as PRL and LH with Bacteroides. Collectively, plasma reproductive hormones, biochemical parameters, and fecal microbiota composition and metabolite levels could alter along with pregnancy and lactation, which might contribute to the growth and development demands of fetuses and newborns.


Asunto(s)
Heces/microbiología , Lactancia , Microbiota , Akkermansia , Albúminas/biosíntesis , Animales , Bacteroides , Proteínas Sanguíneas/análisis , Clostridiales , Desulfovibrio , Estrógenos/sangre , Femenino , Hormona Folículo Estimulante/sangre , Hormona Luteinizante/sangre , Embarazo , Preñez , Progesterona/sangre , Prolactina/sangre , Proteobacteria , Spirochaetales , Streptococcus , Porcinos , Porcinos Enanos , Verrucomicrobia
13.
Bull Environ Contam Toxicol ; 104(6): 828-833, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32385520

RESUMEN

In this study, we investigated the effect of long-term pesticides and chemical fertilizers application on the microbial communities specifically anammox and denitrification bacteria in rice field soils. The abundances of microbial communities (16S rDNA), anammox (hszB), and denitrification (narG, nirK, nirS, and nosZ) genes were quantified by q-PCR. 10 pesticides (5 insecticides, 3 fungicides and 2 herbicides) and chemical fertilizers urea, potassium, phosphate, DAP (di-ammonium phosphate), gypsum, and boric acid were used by local farmers. Nitrate, SOC (ammonia, soil organic carbon), N and C content significantly (p < 0.05) decreased in the rice field soils as compared to the upland soils. Abundance of 16S rDNA, hszB, narG, nirK, nirS, and nosZ genes significantly (p < 0.05) decreased in the rice field soils and positively correlated with chemical properties of soils. Our results provide useful information and further maintenance should be instilled to the potential of chemical and biological factors decreased in rice field soils.


Asunto(s)
Fertilizantes/análisis , Genes Bacterianos , Microbiota/efectos de los fármacos , Oryza/crecimiento & desarrollo , Plaguicidas/toxicidad , Suelo/química , Amoníaco/análisis , Carbono , Desnitrificación/genética , Microbiota/genética , Nitratos/análisis , Plaguicidas/análisis , Microbiología del Suelo
14.
Int J Mol Sci ; 20(24)2019 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-31835852

RESUMEN

Sulfotransferase 1A1 (SULT1A1) is responsible for catalyzing various types of endogenous and exogenous compounds. Accumulating data indicates that the polymorphism rs9282861 (R213H) is responsible for inefficient enzymatic activity and associated with cancer progression. To characterize the detailed functional consequences of this mutation behind the loss-of-function of SULT1A1, the present study deployed molecular dynamics simulation to get insights into changes in the conformation and binding energy. The dynamics scenario of SULT1A1 in both wild and mutated types as well as with and without ligand showed that R213H induced local conformational changes, especially in the substrate-binding loop rather than impairing overall stability of the protein structure. The higher conformational changes were observed in the loop3 (residues, 235-263), turning loop conformation to A-helix and B-bridge, which ultimately disrupted the plasticity of the active site. This alteration reduced the binding site volume and hydrophobicity to decrease the binding affinity of the enzyme to substrates, which was highlighted by the MM-PBSA binding energy analysis. These findings highlight the key insights of structural consequences caused by R213H mutation, which would enrich the understanding regarding the role of SULT1A1 mutation in cancer development and also xenobiotics management to individuals in the different treatment stages.


Asunto(s)
Arilsulfotransferasa/genética , Polimorfismo de Nucleótido Simple/genética , Arilsulfotransferasa/química , Sitios de Unión , Simulación por Computador , Estabilidad de Enzimas , Humanos , Ligandos , Modelos Moleculares , Mutación/genética , Análisis de Componente Principal , Estructura Secundaria de Proteína , Especificidad por Sustrato , Termodinámica
15.
Amino Acids ; 50(1): 3-9, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-29018979

RESUMEN

Hyperhomocysteinemia is an independent risk factor for cardiovascular disease and is associated with primary causes of mortality and morbidity throughout the world. Several studies have been carried out to evaluate the effects of a diet inducing cystathionine-ß-synthase, methyltetrafolate, folic acid, and vitamin B supplemented with methionine on the homocysteine metabolism and in lowering the plasma total homocysteine levels. A large number of molecular and biomedical studies in numerous animals, such as mice, rabbits, and pigs, have sought to elevate the plasma total homocysteine levels and to identify a disease model for human hyperhomocysteinemia. However, a specific animal model is not suitable for hyperhomocysteinemia in terms of all aspects of cardiovascular disease. In this review article, the experimental progress of animal models with plasma total homocysteine levels is examined to identify a feasible animal model of hyperhomocysteinemia for different aspects.


Asunto(s)
Enfermedades Cardiovasculares/metabolismo , Modelos Animales de Enfermedad , Hiperhomocisteinemia/metabolismo , Animales , Enfermedades Cardiovasculares/enzimología , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/fisiopatología , Homocisteína/biosíntesis , Homocisteína/metabolismo , Humanos , Hiperhomocisteinemia/complicaciones , Hiperhomocisteinemia/enzimología , Hiperhomocisteinemia/fisiopatología , Metionina/metabolismo , Factores de Riesgo
16.
ScientificWorldJournal ; 2014: 768038, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24757435

RESUMEN

Papaya (Carica papaya) is severely damaged by the papaya ringspot virus (PRSV). This review focuses on the development of PRSV resistant transgenic papaya through gene technology. The genetic diversity of PRSV depends upon geographical distribution and the influence of PRSV disease management on a sequence of PRSV isolates. The concept of pathogen-derived resistance has been employed for the development of transgenic papaya, using a coat protein-mediated, RNA-silencing mechanism and replicase gene-mediated transformation for effective PRSV disease management. The development of PRSV-resistant papaya via post-transcriptional gene silencing is a promising technology for PRSV disease management. PRSV-resistant transgenic papaya is environmentally safe and has no harmful effects on human health. Recent studies have revealed that the success of adoption of transgenic papaya depends upon the application, it being a commercially viable product, bio-safety regulatory issues, trade regulations, and the wider social acceptance of the technology. This review discusses the genome and the genetic diversity of PRSV, host range determinants, molecular diagnosis, disease management strategies, the development of transgenic papaya, environmental issues, issues in the adoption of transgenic papaya, and future directions for research.


Asunto(s)
Manejo de la Enfermedad , Terapia Genética , Enfermedades de las Plantas/terapia , Potyvirus/patogenicidad , Enfermedades de las Plantas/genética
17.
ScientificWorldJournal ; 2014: 589586, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24737982

RESUMEN

A study was performed using 6 × 6 F1 diallel population without reciprocals to assess the mode of inheritance of pod yield and related traits in groundnut with imposed salinity stress. Heterosis was found for pod number and yield. Data on general and specific combining ability (gca and sca) indicated additive and nonadditive gene actions. The gca: sca ratios were much less than unity suggesting predominant role of nonadditive gene effects. Cultivars "Binachinabadam-2" and "Dacca-1" and mutant M6/25/64-82 had the highest, second highest, and third highest pod number, as well as gca values, respectively. These two cultivars and another mutant M6/15/70-19 also had the highest, second highest, and third highest pod yield, as well as gca values, respectively. Therefore, "Dacca-1", "Binachinabadam-2", M6/25/64-82, and M6/15/70-19 could be used as source of salinity tolerance. Cross combinations showing high sca effects arising from parents with high and low gca values for any trait indicate the influence of nonadditive genes on their expression. Parents of these crosses can be used for biparental mating or reciprocal recurrent selection for developing high yielding varieties. Crosses with high sca effects having both parents with good gca effects could be exploited by pedigree breeding to get transgressive segregants.


Asunto(s)
Arachis/fisiología , Salinidad , Cruzamientos Genéticos
18.
Clin Case Rep ; 12(6): e8999, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38845805

RESUMEN

Key Clinical Message: Sarcoidosis, although predominantly affecting the lungs, can present with cirrhosis, posing diagnostic challenges. Elevated ACE levels and atypical liver enzyme patterns should prompt consideration of sarcoidosis in cryptogenic cirrhosis cases, necessitating comprehensive evaluation including liver biopsy and imaging for accurate diagnosis and timely management. Abstract: Sarcoidosis is a systemic disease that can affect various organs, leading to a diverse range of clinical manifestations that make diagnosis challenging. Here, we present a case of sarcoidosis in a middle-aged male who presented with cirrhosis. The cause of cirrhosis remained unknown for 4 years until the development of lymphadenopathy and ground-glass opacities on lung imaging. A liver biopsy was performed, which revealed noncaseating granulomatous inflammation, thereby identifying sarcoidosis as the cause of cirrhosis. The patient was treated with oral steroids, which slightly improved his liver function over a short period. Given the diverse presentations of sarcoidosis, it should be considered as a possible differential diagnosis in cases of cryptogenic cirrhosis.

19.
Front Microbiol ; 15: 1398919, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38690359

RESUMEN

Introduction: Adequate crude protein (CP) content in diets plays a crucial role in the intestinal health of the animal. This study investigated the impacts of CP content in diets on the intestinal microbiome and metabolome profiles in growing Huanjiang mini-pigs. Methods: A total of 360 pigs with similar body weight (BW) were allocated for three independent feeding trials based on three different BW stages, including (i) 5-10 kg BW, diets consisting of 14, 16, 18, 20, and 22% CP content; (ii) 10-20 kg BW, diets consisting of 12, 14, 16, 18, and 20% CP content; and (iii) 20-30 kg BW, diets consisting of 10, 12, 14, 16, and 18% CP content. These experiments lasted 28, 28, and 26 days, respectively. Results: The results showed that the Shannon and Simpson indices were decreased (p < 0.05) in the ileum of pigs in response to the 14-18% CP compared with the 20% CP content at 5-10 kg BW stage, while diets containing 12 and 14% CP had higher Chao1 (p < 0.05) and Shannon (p = 0.054) indices compared with 18% CP at 20-30 kg BW stage. Compared with the 20% CP, the diet containing 16% CP displayed an increasing trend (p = 0.089) of Firmicutes abundance but had decreased (p = 0.056) Actinobacteria abundance in the jejunum at 5-10 kg BW stage. In addition, a diet containing 16% CP had higher Lactobacillus abundance in the jejunum and ileum compared with the 18, 20, and 22% CP, while had lower Sphingomonas and Pelomonas abundances in the jejunum and Streptococcus abundance in the ileum compared with the diet containing 22% CP (p < 0.05). Diets containing lower CP content altered differential metabolites in the small intestine at the early stage, while higher CP content had less impact. Conclusion: These findings suggest that a diet containing lower CP content (16% CP) may be an appropriate dietary CP content for 5-10 kg Huanjiang mini-pigs, as 16% CP content in diet has shown beneficial impacts on the intestinal microbiome and metabolome profiles at the early growth stage of pigs.

20.
Eval Rev ; 48(2): 370-398, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37195259

RESUMEN

The impact of pro-environmental behavior on policymaking has been an exciting area of research. While the relationship between pro-environmental behavior and policymaking has been explored in numerous studies, there needs to be more synthesis on this topic. This is the first text-mining study of pro-environmental effects in which policymaking is a significant factor. In response, this study, for the first time, takes a novel approach by using text mining in R programming to analyze 30 publications from the Scopus database on pro-environmental behavior in policymaking, highlighting major research themes and prospective research areas for future investigation. Results from text mining yielded 10 topic models, which are presented with a synopsis of the published research and a list of the primary authors, as well as a posterior probability via latent Dirichlet allocation (LDA). Additionally, the study conducts a trend analysis of the top 10 journals with the highest impact factor, considering the influence of each journal's mean citation. The study offers an overview of the impacts of pro-environmental behavior in policymaking, showing the most relevant and frequently discussed themes, introduces the scientific visualization of papers published in the Scopus database, and proposes future study directions. These findings can help researchers and environmental specialists better understand how pro-environmental behavior can be fostered more effectively through policymaking.


Asunto(s)
Bibliometría , Publicaciones , Estudios Prospectivos , Minería de Datos/métodos , Bases de Datos Factuales
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