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1.
Front Plant Sci ; 15: 1423761, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39081524

RESUMEN

The Mediterranean region's harsh conditions, characterized by low rainfall, high solar radiation, and elevated temperatures, pose challenges for vegetation, particularly in the face of climate change. Cultivated olive (Olea europaea subsp. europaea var. europaea) holds historical and economic significance as one of the oldest crops in the Mediterranean. Due to their high germplasm diversity and greater flowering abundance compared to the offspring of cultivated olives, wild olives (Olea europaea subsp. europaea var. sylvestris) could be utilized for selecting new olive cultivars capable of adapting to a changing climate. This research aimed to compare the effects of salt and drought stress on wild and cultivated genotypes by analyzing morphological, physiological, and biochemical parameters. Results showed that shoot length, shoot dry mass, and leaf area are key drought stress indicators in wild olive trees. The results indicated the olive trees more susceptible to salinity stress had lower Na+ and Cl- concentrations in their leaves and took longer to stabilize salt ion levels. Decreased K+ content in roots across all treatments indicated a general stress response. The uptake of Ca2+ appears to be the most energy-efficient response of olive trees to short-term salinity and drought. In contrast to proline and malondialdehyde, trends in superoxide dismutase activity suggest that it is a reliable indicator of salinity and drought stress. Regarding olive adaptability to salinity stress, promising results obtained with two wild olive genotypes merit their further physiological study.

2.
BMC Vet Res ; 20(1): 256, 2024 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-38867202

RESUMEN

Acetamiprid (ACDP) is a widely used neonicotinoid insecticide that is popular for its efficacy in controlling fleas in domestic settings and for pets. Our study aims to offer a comprehensive examination of the toxicological impacts of ACDP and the prophylactic effects of cinnamon nanoemulsions (CMNEs) on the pathological, immunohistochemical, and hematological analyses induced by taking ACDP twice a week for 28 days. Forty healthy rats were divided into four groups (n = 10) at random; the first group served as control rats; the second received CMNEs (2 mg/Kg body weight); the third group received acetamiprid (ACDP group; 21.7 mg/Kg body weight), and the fourth group was given both ACDP and CMNEs by oral gavage. Following the study period, tissue and blood samples were extracted and prepared for analysis. According to a GC-MS analysis, CMNEs had several bioactive ingredients that protected the liver from oxidative stress by upregulating antioxidant and anti-inflammatory agents. Our findings demonstrated that whereas ACDP treatment considerably boosted white blood cells (WBCs) and lymphocytes, it significantly lowered body weight gain (BWG), red blood cells (RBCs), hemoglobin (Hb), hematocrit (HCT), and platelets (PLT). ACDP notably reduced antioxidant enzyme activities: superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) and elevated hydrogen peroxide and malondialdehyde levels compared with other groups. ACDP remarkably raised alanine aminotransferase (ALT), aspartate amino transaminase (AST), and alkaline phosphatase (ALP) levels.Moreover, the histopathological and immunohistochemistry assays discovered a severe toxic effect on the liver and kidney following ACDP delivery. Furthermore, cyclooxygenase 2 (COX-2) + immunoexpression was enhanced after treatment with CMNEs. All of the parameters above were returned to nearly normal levels by the coadministration of CMNEs. The molecular docking of cinnamaldehyde with COX-2 also confirmed the protective potential of CMNEs against ACDP toxicity. Our findings highlighted that the coadministration of CMNEs along with ACDP diminished its toxicity by cutting down oxidative stress and enhancing antioxidant capacity, demonstrating the effectiveness of CMNEs in lessening ACDP toxicity.


Asunto(s)
Cinnamomum zeylanicum , Emulsiones , Insecticidas , Hígado , Simulación del Acoplamiento Molecular , Neonicotinoides , Animales , Neonicotinoides/farmacología , Cinnamomum zeylanicum/química , Insecticidas/toxicidad , Ratas , Emulsiones/química , Emulsiones/farmacología , Masculino , Hígado/efectos de los fármacos , Hígado/patología , Riñón/efectos de los fármacos , Riñón/patología , Estrés Oxidativo/efectos de los fármacos , Enfermedad Hepática Inducida por Sustancias y Drogas/tratamiento farmacológico , Enfermedad Hepática Inducida por Sustancias y Drogas/prevención & control , Antioxidantes/farmacología , Enfermedades Renales/inducido químicamente , Enfermedades Renales/prevención & control , Enfermedades Renales/patología , Ratas Sprague-Dawley
3.
Int J Mol Sci ; 25(10)2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38791131

RESUMEN

Salinity stress is a type of abiotic stress which negatively affects the signaling pathways and cellular compartments of plants. Melatonin (MT) has been found to be a bioactive compound that can mitigate these adverse effects, which makes it necessary to understand the function of MT and its role in salt stress. During this study, plants were treated exogenously with 100 µM of MT for 7 days and subjected to 200 mM of salt stress, and samples were collected after 1 and 7 days for different indicators and transcriptome analysis. The results showed that salt reduced chlorophyll contents and damaged the chloroplast structure, which was confirmed by the downregulation of key genes involved in the photosynthesis pathway after transcriptome analysis and qRT-PCR confirmation. Meanwhile, MT increased the chlorophyll contents, reduced the electrolyte leakage, and protected the chloroplast structure during salt stress by upregulating several photosynthesis pathway genes. MT also decreased the H2O2 level and increased the ascorbic acid contents and APX activity by upregulating genes involved in the ascorbic acid pathway during salt stress, as confirmed by the transcriptome and qRT-PCR analyses. Transcriptome profiling also showed that 321 and 441 DEGs were expressed after 1 and 7 days of treatment, respectively. The KEGG enrichment analysis showed that 76 DEGs were involved in the photosynthesis pathway, while 35 DEGs were involved in the ascorbic acid metabolism pathway, respectively. These results suggest that the exogenous application of MT in plants provides important insight into understanding MT-induced stress-responsive mechanisms and protecting Brassica campestris against salt stress by regulating the photosynthesis and ascorbic acid pathway genes.


Asunto(s)
Ácido Ascórbico , Brassica , Perfilación de la Expresión Génica , Regulación de la Expresión Génica de las Plantas , Melatonina , Fotosíntesis , Estrés Salino , Melatonina/farmacología , Melatonina/metabolismo , Fotosíntesis/efectos de los fármacos , Ácido Ascórbico/metabolismo , Brassica/metabolismo , Brassica/genética , Brassica/efectos de los fármacos , Regulación de la Expresión Génica de las Plantas/efectos de los fármacos , Transcriptoma/efectos de los fármacos , Clorofila/metabolismo
4.
Cureus ; 16(1): e52066, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38344592

RESUMEN

Being a "behavioral disorder," autism spectrum disorder (ASD) is difficult to manage because its precise etiology is uncertain. In order to better understand the pathophysiology of autism and explore various therapeutic approaches, animal models are developed. Animal models of autism caused by valproate during pregnancy exhibit strong construct validity and reliability. Hence, this study was done among autism-induced rats with the aim of identifying the behavioral and biochemical assays. Pregnant rats were administered sodium valproate on the 12th day of gestation, while control pregnant rats received normal saline. The rats' offspring that received normal saline during intrauterine life were grouped as control, and the rats' offspring that received valproate were grouped as autism-induced. From postnatal day (PND) 21, behavioral assessments were done by using the Y maze (repetitive behavior) and the T maze (social behavior). The estimation of antioxidant profile (malondialdehyde {MDA}, glutathione {GSH}, catalase (CAT), and superoxide dismutase {SOD}), proinflammatory markers (tumor necrosis factor {TNF} alpha, transforming growth factor {TGF} beta, interleukin {IL} 6, and IL-1 beta), neurotransmitters (gamma-aminobutyric acid {GABA} and serotonin), and brain-derived neurotrophic factor (BDNF) in the hippocampal region was done. Oxidative stress, increased proinflammatory markers, and increased serotonin were recorded in the autism group. Rats with autism had a significant decrease in GABA and BDNF levels. These biochemical alterations can be correlated with clinical features of autism to diagnose and manage the disorder at the earliest.

5.
Sci Rep ; 14(1): 4313, 2024 02 21.
Artículo en Inglés | MEDLINE | ID: mdl-38383733

RESUMEN

A proper formulation is crucial to improve the herbicidal effects of essential oils and their selectivity. In this study, we investigated the physicochemical properties of bio-based nanoemulsions (CNs) containing several concentrations of caraway (Carum carvi) essential oil stabilized with Eco Tween 80, as a surfactant, maintaining 1:1 proportions. Detailed physicochemical characteristics of the CNs revealed that their properties were most desired at 2% of the oil and surfactant, i.e., the smallest droplet size, polydispersity index, and viscosity. The CNs caused biochemical changes in maize and barnyard grass (Echinochloa crus-galli) seedlings, however, to a different extent. Barnyard grass has overall metabolism (measured as a thermal power) decreased by 39-82% when exposed to the CNs. The CNs triggered changes in the content and composition of carbohydrates in the endosperm of both species' seedlings in a dose-response manner. The foliar application of CNs caused significant damage to tissues of young maize and barnyard grass plants. The effective dose of the CN (ED50, causing a 50% damage) was 5% and 17.5% oil in CN for barnyard grass and maize tissues, respectively. Spraying CNs also decreased relative water content in leaves and affected the efficiency of photosynthesis by disturbing the electron transport chain. We found that barnyard grass was significantly more susceptible to the foliar application of CNs than maize, which could be used to selectively control this species in maize crops. However, further studies are needed to verify this hypothesis under field conditions.


Asunto(s)
Carum , Echinochloa , Aceites Volátiles , Zea mays , Aceites de Plantas/farmacología , Aceites Volátiles/farmacología , Aceites Volátiles/química , Plantones , Tensoactivos/farmacología
6.
Int J Pharm ; 652: 123765, 2024 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-38195032

RESUMEN

Despite the successful use of the radiopharmaceutical radium-223 dichloride ([223Ra]RaCl2) for targeted alpha therapy of castration-resistant prostate cancer patients with bone metastases, some short-term side effects, such as diarrhea and vomiting, have been documented, causing patient discomfort. Hence, we prepared a nanosized micellar solution of [223Ra]RaCl2 and evaluated its biodistribution, pharmacokinetics, and induced biochemical changes in healthy mice up to 96 h after intraperitoneal administration as an alternative to overcome the previous limitations. In addition, we evaluated the bone specificity of micellar [223Ra]RaCl2 in patient-derived xenografts in the osteosarcoma model. The biodistribution studies revealed the high bone-targeting properties of the micellar [223Ra]RaCl2. Interestingly, the liver uptake remained significantly low (%ID/g = 0.1-0.02) from 24 to 96 h after administration. In addition, the micellar [223Ra]RaCl2 exhibited a significantly higher uptake in left (%ID/g = 0.85-0.23) and right (%ID/g = 0.76-0.24) kidneys than in small (%ID/g = 0.43-0.06) and large intestines (%ID/g = 0.24-0.09) over time, suggesting its excretion pathway is primarily through the kidneys into the urine, in contrast to the non-micellar [223Ra]RaCl2. The micellar [223Ra]RaCl2 also had low distribution volume (0.055 ± 0.003 L) and longer elimination half-life (28 ± 12 days). This nanosystem was unable to change the enzymatic activities of alanine aminotransferase, aspartate aminotransferase, gamma GT, glucose, and liquiform lipase in the treated mice. Finally, microscopic examination of the animals' osteosarcoma tumors treated with micellar [223Ra]RaCl2 indicated regression of the tumor, with large areas of necrosis. In contrast, in the control group, we observed tumor cellularity and cell anaplasia, mitotic figures and formation of neoplastic extracellular bone matrix, which are typical features of osteosarcoma. Therefore, our findings demonstrated the efficiency and safety of nanosized micellar formulations to minimize the gastrointestinal excretion pathway of the clinical radiopharmaceutical [223Ra]RaCl2, in addition to promoting regression of the osteosarcoma. Further studies must be performed to assess dose-response outcomes and organ/tissue dosimetry for clinical translation.


Asunto(s)
Neoplasias Óseas , Osteosarcoma , Neoplasias de la Próstata Resistentes a la Castración , Humanos , Masculino , Animales , Ratones , Radiofármacos/farmacocinética , Distribución Tisular , Eliminación Renal , Neoplasias Óseas/tratamiento farmacológico , Neoplasias Óseas/radioterapia , Osteosarcoma/tratamiento farmacológico , Neoplasias de la Próstata Resistentes a la Castración/patología
7.
Wiad Lek ; 76(9): 2015-2020, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37898938

RESUMEN

OBJECTIVE: The aim: To assess the structural and metabolic changes in the sensorimotor cortex of the rat brain under conditions of hemorrhagic stroke. PATIENTS AND METHODS: Materials and methods: The experiment was carried out on rats of the control and experimental groups with a model of hemorrhagic stroke. We used histological, electron microscopic, biochemical methods and biological markers. RESULTS: Results: In the sensorimotor cortex of the ipsilateral cerebral hemisphere of rats under conditions of hemorrhagic stroke, cerebral edema and progression of neurodegenerative changes were observed; an increase in the size of mitochondria, which is caused by edema of their matrix; activation of lipid peroxidation processes and a decrease in the activity of enzymes of the antioxidant system, a decrease in the level of apoptosis markers and inhibition of ERK1/2 expression. The study of DNA fragmentation in the cerebral cortex revealed a significant number of manifestations of necrosis and an insignificant number of cells in a state of apoptosis. CONCLUSION: Conclusions: after modelling a hemorrhagic stroke in the right hemisphere of the brain, perivascular and pericellular edema of the energy apparatus, cell death by necrosis and apoptosis, and activation of lipid peroxidation processes were established as well as a decrease in the activity of enzymes of the antioxidant system.


Asunto(s)
Accidente Cerebrovascular Hemorrágico , Corteza Sensoriomotora , Accidente Cerebrovascular , Humanos , Antioxidantes , Necrosis , Edema
8.
Anim Biosci ; 36(11): 1747-1756, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37402461

RESUMEN

OBJECTIVE: The objective of this study was to evaluate the effects of four different cooking techniques viz: boiling, grilling, microwave, and frying; on the physicochemical characteristics of camel meat. METHODS: Protein composition and their degradation as well as biochemical and textural changes of camel meat as influenced by cooking methods were investigated. RESULTS: The highest cooking loss (52.61%) was reported in microwaved samples while grilled samples showed the lowest cooking loss (44.98%). The microwaved samples showed the highest levels of lipid oxidation as measured by thiobarbituric acid reactive substances, while boiled samples showed the lowest levels (4.5 mg/kg). Protein solubility, total collagen, and soluble collagen content were highest in boiled samples. Boiled camel meat had lower hardness values compared to the other treated samples. Consequently, boiling was the more suitable cooking technique for producing camel meat with a reduced hardness value and lower lipid oxidation level. CONCLUSION: The camel meat industry and camel meat consumer can benefit from this research by improving their commercial viability and making consumers aware about the effects of cooking procedures on the quality of camel meat. The results of this study will be of significance to researchers and readers who are working on the processing and quality of camel meat.

9.
Top Companion Anim Med ; 55: 100801, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37423381

RESUMEN

This study aimed to evaluate the effects of the repeated administration of tramadol subcutaneously on postoperative analgesia, liver, kidneys, and oxidative status in the postoperative period of cats undergoing ovariohysterectomy. Thirty-seven cats were randomly assigned to 5 groups, according to the postoperative analgesic treatment: NaCl 0.9%, GC; tramadol at 2 mg/kg, T2B (q12h) and T2T (q8h); or 4 mg/kg, T4B (q12h) and T4T (q8h). Oxidative status was assessed at baseline, 12 hours and 24 hours after the final administration of tramadol by the activity of superoxide dismutase (SOD), catalase (CAT), myeloperoxidase (MPO), butyrylcholinesterase (BuChE), and lipoperoxidation (MDA). Total blood count, serum biochemistry and urinalysis were compared between baseline and 12 hours posttramadol. Postoperative pain was evaluated by applying the Glasgow Feline Composite Measure Pain Scale at baseline, 3 (T3), 6 (T6), 8 (T8), 12 (T12), 24 (T24) e 36 (T36) hours after extubation. No side effects were observed. Tramadol increased SOD activity while CAT varied among groups in all time points but not over time. MDA levels increased from baseline to 12 hours in all groups but T4T. MPO activity decreased from baseline to 24 hours in some groups, including GC. Creatinine and phosphatase alkaline decreased in T2T, T4B, and T4T at 12 hours. Higher pain scores were observed from T3 to T8, except for GC. Rescue analgesia was administered only at T3. No difference in pain scores was observed from T8 onwards. Based on the findings, it is suggested that tramadol at 2 mg/kg every 8 hours is recommended for postoperative analgesia of cats undergoing ovariohysterectomy.


Asunto(s)
Analgesia , Enfermedades de los Gatos , Tramadol , Femenino , Gatos , Animales , Tramadol/uso terapéutico , Analgésicos Opioides/uso terapéutico , Analgésicos Opioides/farmacología , Butirilcolinesterasa/uso terapéutico , Analgesia/veterinaria , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/prevención & control , Dolor Postoperatorio/veterinaria , Superóxido Dismutasa/uso terapéutico , Estrés Oxidativo , Ovariectomía/veterinaria
10.
Biology (Basel) ; 12(6)2023 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-37372074

RESUMEN

The possibility of inducing systemic resistance in roselle against root rot and wilt diseases was investigated using biotic and abiotic inducers. The biotic inducers included three biocontrol agents (i.e., Bacillus subtilis, Gliocladium catenulatum, and Trichoderma asperellum) and two biofertilizers (i.e., microbein and mycorrhizeen), while the abiotic inducers included three chemical materials (i.e., ascorbic acid, potassium silicate, and salicylic acid). In addition, preliminary in vitro studies were conducted to evaluate the inhibitory activity of the tested inducers on the growth of pathogenic fungi. The results show that G. catenulatum was the most efficient biocontrol agent. It reduced the linear growth of Fusarium solani, F. oxysporum, and Macrophomina phaseolina by 76.1, 73.4, and 73.2%, respectively, followed by B. subtilis by 71.4, 69, and 68.3%, respectively. Similarly, potassium silicate was the most effective chemical inducer followed by salicylic acid, each at 2000 ppm. They reduced the linear growth of F. solani by 62.3 and 55.7%; M. phaseolina by 60.7 and 53.1%; and F. oxysporum by 60.3 and 53%, respectively. In the greenhouse, all inducers applied as a seed treatment and/or foliar spray strongly limited the development of root rot and wilt diseases. In this regard, G. catenulatum, at 1 × 109 CFU mL-1, achieved the highest values of disease control, followed by B. subtilis; while T. asperellum, at 1 × 105 CFU mL-1, recorded the lowest values. In addition, the plants treated with potassium silicate followed by salicylic acid, each at 4 g/L, recorded the highest disease control compared to ascorbic acid at 1 g/L, which had the lowest values. The mixture of mycorrhizeen + microbein (at 10 g/kg seeds) was the most effective compared to either of them alone. All treatments, applied alone or in combination in the field, significantly reduced the incidence of diseases. The most effective treatments were a mixture of G. catenulatum (Gc) + Bacillus subtilis (Bs) + Trichoderma asperellum (Ta); a mixture of ascorbic acid (AA) + potassium silicate (PS) + and salicylic (SA); G. catenulatum; potassium silicate; and a mixture of mycorrhizeen + microbein. Rhizolix T had the highest disease-reducing efficacy. In response to the treatments, significant improvements in growth and yield, changes in biochemicals, and increased activities of defense enzymes were achieved. This research points to the activity of some biotic and abiotic inducers that can play a vital role in managing the root rot and wilt of roselle through the induction of systemic plant resistance.

11.
Wiad Lek ; 76(2): 274-284, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37010162

RESUMEN

OBJECTIVE: The aim of the study was to evaluate the state of oxidation processes and morphological changes in the heart of castrated rats during the development of epinephrine heart damage (EHD). PATIENTS AND METHODS: Materials and methods. The study was performed on 120 white male Wistar rats. The animals were divided into four series: 1 - control, 2 - castration. For EHD, rats were injected once intraperitoneally with a 0.18% solution of adrenaline hydrotartrate at the rate of 0.5 mg/kg of weight. Castration was performed under anesthesia. The concentration of diene and triene conjugates (DC, TC), Schiff's bases (SB), TBA-active products (TBA-ap), oxidatively modi"ed proteins (OMP), activity of superoxide dismutase (SOD) and catalase (CAT) were determined in the heart. A morphological study of preparations stained with Azantrichrome was carried out. All studies were performed in control, 1, 3, 7, 14 and 28 days after adrenaline injection. RESULTS: Results: In the I series DC and TC increased after 1 day of EHD, fell to control values after 3 days, and then had wave-like character (highest - after 14 days). SB decreased (minimal after 7 days), TBA-ap increase (maximal after 14 days). OMP370 increased after 1 and 3 days, after 7 days they did not differ from the control, after 14 days they were higher than in control, and after 28 days they decreased to the control values. OMP430 and OMP530were greater than the control indicators in all terms, except the last; the maximum was noted after 14 days. The activity of antioxidant enzymes was lower than the control indicators at all times of the study. Castration caused an increase of lipid peroxidation. After 7 days, DC and TC, were lower and SB - higher, than in the I series. Castration caused a decrease in OMP. In EHD all values of OMP, compared to the castrated control rats, were higher at all studed times Castration leads to increase of SOD, and decrase of CAT. All indicators of SOD and CAT exceeded the indicators of animals of the I series at all times of the study. Biochemical changes are consistent with morphological changes. After injection of epinephrine, severe vascular disorders, adventitia edema, perivasal edema, endothelial cell damage, dilatation of hemicapillaries, full blood vessels, stasis, hemorrhages in the surrounding tissues, and sclerosing of the walls of arteries and venules were observed. Cardiomyocytes were swollen, shortening, necrosis was observed, myocytolysis was noted. Edema of the stroma was noted. In the stroma, around the vessels, located cells of connective tissue elements were observed. Indicate more damage to the myocardium in the process of development of EHD in animals of the I series. CONCLUSION: Conclusions: Castration of rats causes an increase of lipid peroxidation products and CAT activity in the heart, but a decrease in the content of OMP. Adrenaline injection causes activation of lipid peroxidation and an increase in the content of OMP. During the development of EHD, the activity of antioxidants is significantly higher in II group. Biochemical changes are consistent with morphological, and indicate more damage to the myocardium in the development of EHD in animals of the I series.


Asunto(s)
Antioxidantes , Corazón , Masculino , Animales , Ratas , Ratas Wistar , Antioxidantes/farmacología , Catalasa , Superóxido Dismutasa , Peroxidación de Lípido/fisiología , Epinefrina , Estrés Oxidativo
12.
Plant Physiol Biochem ; 197: 107639, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36989985

RESUMEN

Poor rooting performance of Chinese pepper (Zanthoxylum beecheyanum K. Koch) shrub is a restriction for its commercial production. This investigation was carried out to assess the effectiveness of the exogenous application of indole-3-butyric acid (IBA) on adventitious root (AR) formation and some morpho-physiological, biochemical, and histological alterations associated with rhizogenesis events. IBA, at 1500 or 2000 mg kg-1, gave comparable effects for improving the performance of rooting architecture compared to the control treatment. The AR primordia of Z. beecheyanum originated from two distinct developmental pathways: (i) direct genesis from cells in the cambial zone and nearby tissues, and (ii) indirect genesis from cells in callus tissues. Rooting process involved four phases: (i) induction at 0-10 days after planting (DAP), (ii) initiation at 10-15 DAP, (iii) formation of the root primordia (Rp) at 15-20 DAP, and (iv) root extension at 20-30 DAP. Cuttings' inductive phase correlated temporarily with intensive cell divisions, high levels of endogenous indole-3-acetic acid (IAA) and gibberellins (GA3). However, IBA application led to a pronounced increase in soluble sugars and phenolic content. The initiation phase was accompanied by a histological appearance of meristemoids. This phase was also stimulated by the subsequent generation of low IAA and high GA3 contents. In the development of Rp and root extension phases, prominent Rp formation in the cambium and complete differentiation with vascular tissues continued with that of the stem cuttings. In essence, the current study provides insights into the morphological, histo-physiological, and phytohormonal alterations in stem cuttings.


Asunto(s)
Reguladores del Crecimiento de las Plantas , Zanthoxylum , Reguladores del Crecimiento de las Plantas/farmacología , Indoles/farmacología , Ácidos Indolacéticos/farmacología , Raíces de Plantas
13.
Food Res Int ; 164: 112325, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36737919

RESUMEN

Animal aquatic products have high water content, abundant enzyme system and their own diverse microbial flora. These products are severely susceptible to autolysis and degradation after death, resulting in many adverse effects on storage, processing, and transportation. Among them, the endogenous enzyme are the key factor that caused the autolysis and degradation. Autolytic hydrolysis provides an effective way to maximize the use of aquatic by-products and achieve increased protein resources and reduce environmental pollution from by-products. To better acquaintance the autolysis phenomenon and regulation of the autolysis phenomenon. This paper reviews the autolytic mechanism, biochemical changes, influencing factors, and potential applications of animal aquatic products and their by-products to explore autolysis and its effective utilization and regulation. In addition, this study also emphasizes the importance of making full use of aquatic by-products. Furthermore, the research trends and future challenges of autolysis are also discussed. Autolysis can effectively transform aquatic products and by-products into bioactive hydrolysates. The hydrolysates produced by the autolysis of aquatic products and their by-products have attracted attention because of their wide applications in food, healthcare, and animal feed industries. However, the mechanism and regulation (promotion or inhibition) of autolysis should be further studied, and autolysate at the industrial level should be produced to provide high-value-added products for by-product processing and realize the sustainable utilization of resources.


Asunto(s)
Contaminación Ambiental , Proteínas , Animales , Hidrólisis
14.
Foods ; 12(1)2023 Jan 03.
Artículo en Inglés | MEDLINE | ID: mdl-36613434

RESUMEN

Quality deterioration is a major problem restricting the fresh-cut potato industry. The present study investigated the effect of sodium nitroprusside (SNP) treatment on the quality of fresh-cut potatoes during short-term storage. The treatment was carried out immediately either before or after cutting, using an SNP concentration of 200 µmol/L. The results showed that SNP treatment inhibited the accumulation of malondialdehyde (MDA) and total soluble solids (TSSs). SNP treatment also decreased the firmness, chewing properties, and ascorbic acid (AsA) content in potatoes, maintaining high levels of total phenols (TPs), total flavonoids (TFs), nitric oxide (NO), and superoxide dismutase (SOD). Furthermore, SNP treatment restrained the rise of phenylalanine ammonia-lyase (PAL), peroxidase (POD), and polyphenol oxidase (PPO), as well as the electrolyte leakage (EL) rate. After SNP treatment, the nitrite content in the potatoes was within security scope. Comparing potatoes treated before and after cutting, the best result was noted in the potatoes soaked in SNP before cutting, which displayed the smallest losses in firmness (11.24%), chewing properties (34.30%), and AsA (40.35%), and maximum increases in TPs (32.84%), TFs (2.83-time), NO (76.11%), and SOD activity (93.15%). Moreover, this group presented the minimum MDA content, EL rate, and TSS values and the lowest PAL, POD, and PPO activities. These results indicated that 200 µmol/L SNP applied for 20 min, particularly before cutting, is an efficient alternative technology that can be used in the fresh-cut potato industry.

15.
Plants (Basel) ; 12(2)2023 Jan 07.
Artículo en Inglés | MEDLINE | ID: mdl-36679005

RESUMEN

In recent years, the global agricultural system has been unfavorably impacted by adverse environmental changes. These changes in the climate, in turn, have altered the abiotic conditions of plants, affecting plant growth, physiology and production. Abiotic stress in plants is one of the main obstacles to global agricultural production and food security. Therefore, there is a need for the development of novel approaches to overcome these problems and achieve sustainability. Nanotechnology has emerged as one such novel approach to improve crop production, through the utilization of nanoscale products, such as nanofertilizer, nanofungicides, nanoherbicides and nanopesticides. Their ability to cross cellular barriers makes nanoparticles suitable for their application in agriculture. Since they are easily soluble, smaller, and effective for uptake by plants, nanoparticles are widely used as a modern agricultural tool. The implementation of nanoparticles has been found to be effective in improving the qualitative and quantitative aspects of crop production under various biotic and abiotic stress conditions. This review discusses various abiotic stresses to which plants are susceptible and highlights the importance of the application of nanoparticles in combating abiotic stress, in addition to the major physiological, biochemical and molecular-induced changes that can help plants tolerate stress conditions. It also addresses the potential environmental and health impacts as a result of the extensive use of nanoparticles.

16.
Drug Chem Toxicol ; : 1-10, 2023 Jan 19.
Artículo en Inglés | MEDLINE | ID: mdl-36656072

RESUMEN

Microplastic (MP) pollution has become a health concern subject in recent years. Althoughann increasing number of studies about the ingestion of microplastics by fish, research on the oxidative stress response to MPs in natural environments is quite limited. In this study, the identification and characterization of MPs in gill (G), muscle tissues (M), and gastrointestinal tract (GI) of turbot (Scophthalmus maximus) were evaluated. Oxidative damage of MPs on the brain (B), liver (L), gill (G), and muscle (M) tissues as well as their effect on superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), paraoxonase (PON), arylesterase (AR) myeloperoxidase (MPO), and malondialdehyde (MDA) biomarkers were evaluated. The potential transmission of MPs from muscle tissues to humans was examined. Results showed that gills contain the highest amounts of MPs, ethylene propylene is the most dominant polymer type, black and blue are the most common MP color, fiber is the most common shape, and 50-200 µm is the most common MP size. Results showed that MPs cause oxidative stress of tissues with inhibiting effect on enzyme activities and promoting impact on lipid peroxidation. The oxidative damage mostly affected the liver (detoxification organ) followed by gill tissue. The intake of MPS in the European Union was estimated by EFSA as 119 items/year, while in Turkey it is 47.88 items/year. This study shows that more research is needed in terms of ecosystem health and food chain safety. The risk assessment of MPs in living organisms and environmental matrices including food safety and human health should be considered a public health issue.

17.
Environ Sci Pollut Res Int ; 30(4): 8526-8539, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35554831

RESUMEN

The major global concern on energy is focused on conventional fossil resources. The burning of fossil fuels is an origin of greenhouse gas emissions resulting in the utmost threat to the environment and subsequently which leads to global climate changes. As far as sustainability is concerned, fuels and materials derived from organic or plant wastes overcome this downside establishing the solution to the fossil resource crisis. In this context, exploration of agricultural residue appears to be a suitable alternative of non-renewable resources to support the environmental feasibility and meet the high energy crisis. The use of agricultural waste as a feedstock for the biorefinery approach emerges to be an eco-friendly process for the production of biofuel and value-added chemicals, intensifying energy security. Therefore, a prospective choice of this renewable biomass for the synthesis of green fuel and other green biochemicals comes up with a favorable outcome in terms of cost-effectiveness and sustainability. Exploiting different agricultural biomass and exploring various biomass conversion techniques, biorefinery generates bioenergy in a strategic way which eventually fits in a circular bioeconomy. Sources and production of agricultural waste are critically explained in this paper, which provides a path for further value addition by various technologies. Biorefinery solutions, along with a life cycle assessment of agricultural waste biomass toward a wide array of value-added products aiding the bioeconomy, are summarized in this paper.


Asunto(s)
Combustibles Fósiles , Plantas , Biocombustibles , Biomasa , Estudios Prospectivos , Reciclaje
18.
Acta Odontol Scand ; 81(4): 267-277, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36436210

RESUMEN

OBJECTIVE: To comprehensively assess recent data on the effects of orthodontic forces on the dental pulp and to critically evaluate, whether any of the changes are permanent. MATERIALS AND METHODS: Articles published between 2/2009 and 2/2022 were searched electronically on the PubMed, EMBASE and SCOPUS databases. The initial search retrieved 780 publications and, applying the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, 33 relevant articles were identified. Twenty articles fulfilled the requirements for high (n = 1) or moderate (n = 19) methodological quality and were included. All assessments were made independently by three researchers. RESULTS: Orthodontic forces appeared to cause a reduction in pulpal blood flow and a reduction in tooth sensibility, as indicated by increased response thresholds and increased amounts of negative responses to tooth sensibility tests. In addition, there were increases in the expression or activity levels of enzymes and neuropeptides associated with hypoxia and inflammation. Fibrotic tissue formation in the pulp was also reported. CONCLUSIONS: Except for some histological and morphological alterations, the observed pulpal changes were in most cases only temporary, appearing within days of initiating the treatment and usually lasting for weeks. There were no clear signs of permanent damage.


Asunto(s)
Fuerza de la Mordida , Pulpa Dental , Humanos
19.
J Biophotonics ; 16(4): e202000209, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-32888381

RESUMEN

Vascular disrupting agents disrupt tumor vessels, blocking the nutritional and oxygen supply tumors need to thrive. This is achieved by damaging the endothelium lining of blood vessels, resulting in red blood cells (RBCs) entering the tumor parenchyma. RBCs present in the extracellular matrix are exposed to external stressors resulting in biochemical and physiological changes. The detection of these changes can be used to monitor the efficacy of cancer treatments. Spectroscopic photoacoustic (PA) imaging is an ideal candidate for probing RBCs due to their high optical absorption relative to surrounding tissue. The goal of this work is to use PA imaging to monitor the efficacy of the vascular disrupting agent 5,6-Dimethylxanthenone-4-acetic acid (DMXAA) through quantitative analysis. Then, 4T1 breast cancer cells were injected subcutaneously into the left hind leg of eight BALB/c mice. After 10 days, half of the mice were treated with 15 mg/kg of DMXAA and the other half were injected with saline. All mice were imaged using the VevoLAZR X PA system before treatment, 24 and 72 hours after treatment. The imaging was done at six wavelengths and linear spectral unmixing was applied to the PA images to quantify three forms of hemoglobin (oxy, deoxy and met-hemoglobin). After imaging, tumors were histologically processed and H&E and TUNEL staining were used to detect the tissue damage induced by the DMXAA treatment. The total hemoglobin concentration remained unchanged after treatment for the saline treated mice. For DMXAA treated mice, a 10% increase of deoxyhemoglobin concentration was detected 24 hours after treatment and a 22.6% decrease in total hemoglobin concentration was observed by 72 hours. A decrease in the PA spectral slope parameters was measured 24 hours after treatment. This suggests that DMXAA induces vascular damage, causing red blood cells to extravasate. Furthermore, H&E staining of the tumor showed areas of bleeding with erythrocyte deposition. These observations are further supported by the increase in TUNEL staining in DMXAA treated tumors, revealing increased cell death due to vascular disruption. This study demonstrates the capability of PA imaging to monitor tumor vessel disruption by the vascular disrupting agent DMXAA.


Asunto(s)
Antineoplásicos , Neoplasias , Técnicas Fotoacústicas , Xantonas , Ratones , Animales , Antineoplásicos/farmacología , Neovascularización Patológica , Xantonas/farmacología , Xantonas/uso terapéutico , Hemoglobinas
20.
Pathogens ; 11(11)2022 Oct 29.
Artículo en Inglés | MEDLINE | ID: mdl-36365012

RESUMEN

Bovine anaplasmosis is a tick-borne disease caused by an obligate intercellular Gram-negative bacterium named Anaplasma (A.) marginale. In this study, we report the seasonal prevalence, potentially associated risk factors and phylogeny of A. marginale in cattle of three different breeds from Multan District, Southern Punjab, Pakistan. A total of 1020 blood samples (crossbred, n = 340; Holstein Friesian, n = 340; and Sahiwal breed, n = 340) from apparently healthy cattle were collected on a seasonal basis from March 2020 to April 2021. Based on PCR amplification of the msp5 partial sequence, overall, the A. marginale prevalence rate was estimated at 11.1% (113/1020) of the analyzed cattle samples. According to seasons, the highest prevalence rate was observed in autumn (16.5%), followed by winter (10.6%) and summer (9.8%), and the lowest was recorded in the spring (7.5%). The crossbred and Sahiwal cattle were the most susceptible to A. marginale infection, followed by Holstein Friesian cattle (7.9%). Analysis of epidemiological factors revealed that cattle reared on farms where dairy animals have tick loads, dogs coinhabit with cattle and dogs have tick loads have a higher risk of being infected with A. marginale. In addition, it was observed that white blood cell, lymphocyte (%), monocyte (%), hematocrit, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentrations were significantly disturbed in A. marginale-positive cattle compared with non-infested cattle. Genetic analysis of nucleotide sequences and a phylogenetic study based on msp5 partial sequencing demonstrated that this gene appears to be highly conserved among our isolates and those infecting apparently healthy cattle from geographically diverse worldwide regions. The presented data are crucial for estimating the risk of bovine anaplasmosis in order to develop integrated control policies against bovine anaplasmosis and other tick-borne diseases infecting cattle in the country.

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