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1.
Front Med (Lausanne) ; 11: 1396224, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39081689

RESUMEN

Neglected tropical diseases (NTDs) pose a significant threat to the health of millions of people worldwide, particularly in impoverished populations in tropical and subtropical regions. The World Health Organization (WHO) considers certain fungal infections, such as chromoblastomycosis, as NTDs. Chromoblastomycosis is a chronic fungal infection affecting the skin and subcutaneous tissue, primarily found in tropical and subtropical regions of Latin America, Africa, and Asia. This case report presents a 46-year-old female patient with chromoblastomycosis who had a history of renal transplantation and was receiving immunosuppressive therapy. The patient exhibited dark, verrucous, and ulcerative lesions on the legs, and the diagnosis was confirmed through the microscopic examination of skin scrapings by observing medlar bodies. Two sequential fungal tissue cultures and ITS sequencing verified the presence of Alternaria infectoria, not formerly described in chromoblastomycosis. Moreover, observation of fly larvae in the lesions verified the diagnosis of myiasis. Treatment with voriconazole and terbinafine resulted in complete resolution of the lesions after 5 months. This case emphasizes the importance of considering chromoblastomycosis in individuals with occupational exposure in tropical areas, as well as the challenges associated with its diagnosis, coinfections, and treatment.

2.
Food Addit Contam Part B Surveill ; 17(3): 208-212, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38778665

RESUMEN

This study is aimed at measuring nitrate levels in different vegetables from Tehran's markets that are consumed raw and fresh and to evaluate human health risk. Basil, parsley, radish leaves, cress, leek, radish, spring onion were randomly collected from local markets and the nitrate content was analysed by spectrophotometry. Average nitrate levels in the samples were 40.1, 45.2, 50.0, 51.8, 55.4, 90.2 and 110 mg kg-1 in parsley, leek, basil, radish leaves, cress, radish and spring onion, respectively. The average content in all samples was below Iranian standard limits. Tuber vegetables had significantly higher nitrate content than (green) leafy vegetables.


Asunto(s)
Nitratos , Verduras , Irán , Verduras/química , Nitratos/análisis , Humanos , Contaminación de Alimentos/análisis , Hojas de la Planta/química
3.
Food Chem X ; 21: 101142, 2024 Mar 30.
Artículo en Inglés | MEDLINE | ID: mdl-38304050

RESUMEN

This systematic study deals with the amount of bisphenol A (BPA) in milk and dairy products, its analytical methods, and risk assessment. Milk is one of the drinks that has a high consumption. Bisphenol A can be present both in raw milk and its amount undergoes changes during the pasteurization process. This review was conducted by searching for the keywords Bisphenol A, BPA milk, dairy product, cheese, cream, butter, yogurt, measurement, detection, and analysis in different databases. The search was done in three databases, Scopus, PubMed and Science Direct. The largest number of studies on the determination of bisphenol A belonged to Asian and European countries. The amount of bisphenol A in milks was observed in the range from ND to 640 ng/mL. Furthermore, the amount of BPA in the tested cheese samples was observed in the ND range up to 6.1 ng/g and in the yogurt samples in the ND range up to 4.4 ng/g. The most used analytical method was based on liquid chromatography. The most used solvent for extraction was methanol or acetonitrile. HQ (Hazard Quotient) was also calculated in some studies. There was no risk in terms of milk consumption due to BPA contamination in extracted data.

4.
Neurochem Res ; 49(4): 1049-1060, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38252396

RESUMEN

Chemotherapy-induced peripheral neuropathy (CIPN) is a major challenge for cancer patients who undergo chemotherapy with paclitaxel. Therefore, finding effective therapies for CIPN is crucial. Glatiramer acetate is used to treat multiple sclerosis that exerts neuroprotective properties in various studies. We hypothesized that glatiramer acetate could also improve the paclitaxel-induced peripheral neuropathy. We used a rat model of paclitaxel (2 mg/kg/every other day for 7 doses)-induced peripheral neuropathy. Rats were treated with either different doses of glatiramer acetate (1, 2, 4 mg/kg/day) or its vehicle for 14 days in separate groups. The mechanical and thermal sensitivity of the rats by using the Von Frey test and the Hot Plate test, respectively, were assessed during the study. The levels of oxidative stress (malondialdehyde and superoxide dismutase), inflammatory markers (TNF-α, IL-10, NF-kB), and nerve damage (H&E and S100B staining) in the sciatic nerves of the rats were also measured at the end of study. Glatiramer acetate (2 and 4 mg/kg) exerted beneficial effects on thermal and mechanical allodynia tests. It also modulated the inflammatory response by reducing TNF-α and NF-κB levels, enhancing IL-10 production, and improving the oxidative stress status by lowering malondialdehyde and increasing superoxide dismutase activity in the sciatic nerve of the rats. Furthermore, glatiramer acetate enhanced nerve conduction velocity in all treatment groups. Histological analysis revealed that glatiramer acetate (2 and 4 mg/kg) prevented paclitaxel-induced damage to the nerve structure. These results suggest that glatiramer acetate can alleviate the peripheral neuropathy induced by paclitaxel.


Asunto(s)
Paclitaxel , Enfermedades del Sistema Nervioso Periférico , Humanos , Ratas , Animales , Paclitaxel/toxicidad , Acetato de Glatiramer/uso terapéutico , Acetato de Glatiramer/farmacología , Interleucina-10 , Citocinas/farmacología , Factor de Necrosis Tumoral alfa/metabolismo , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/tratamiento farmacológico , Enfermedades del Sistema Nervioso Periférico/prevención & control , Estrés Oxidativo , Hiperalgesia/inducido químicamente , Superóxido Dismutasa/metabolismo , Malondialdehído/farmacología
5.
Food Sci Nutr ; 11(10): 5882-5889, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37823100

RESUMEN

The growing demand for high food quality has been encouraging researchers in the food industry to apply biodegradable nanocomposites, which provide new opportunities and challenges for the advance of nanomaterials in the food industry. The objective of this study was to estimate the antibacterial activity and cytotoxicity effects of zinc oxide nanocomposite/zeolite (c/Zeo) with Aloe vera gel (AG) and its effect on the shelf life of chicken meat. The ZnONPs/Zeo was assessed using X-ray fluorescence (XRF) and field emission scanning electron microscopy (FE-SEM) analyses. The cytotoxicity effect of ZnONPs/Zeo was assessed by MTT assay. Then, the minimum inhibitory concentrations (MIC) and minimum bactericidal concentration (MBC) of ZnONPs/Zeo and ZnONPs/Zeo-AG against Salmonella typhi and Salmonella para typhi A were investigated. Also, the preservative effect of nanocomposites on chicken fillets was evaluated. The results showed that these nanocomposites have the least cytotoxicity effect, resulting in good biocompatibility with the host. The MIC and MBC values of ZnONPs/Zeo-AG were lower than the ZnONPs/Zeo against S. typhi and S. paratyphi A. Both ZnONPs/Zeo-AG and ZnONPs/Zeo caused a significant decrease in the bacterial count of the chicken fillets. So, by spraying on meat, the number of bacteria presented a sharper decline as compared with the control group, resulting in an approximately 3.3 and 3-log10 reduction over 48 h in the ZnONPs/Zeo-AG and ZnONPs/Zeo treatment samples, respectively. In conclusion, antimicrobial packaging with ZnONPs containing A. vera is a beneficial solution for preserving and improving the quality, safety, and shelf life of fresh meat products.

6.
BMC Complement Med Ther ; 23(1): 310, 2023 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-37670294

RESUMEN

BACKGROUND: This research aimed to evaluate the protective effects of Artemisia Absinthium L. (Abs) against liver damage induced by aluminium oxide nanoparticles (Al2O3 NPs) in rats, including both structural and functional changes associated with hepatotoxicity. METHODS: Thirty-six rats were randomly divided into six groups (n = 6). The first group received no treatment. The second group was orally administered Abs at a dose of 200 mg/kg/b.w. The third and fifth groups were injected intraperitoneally with γ-Al2O3 NPs and α-Al2O3 NPs, respectively, at a dose of 30 mg/kg/b.w. The fourth and sixth groups were pre-treated with oral Abs at a dose of 200 mg/kg/b.w. along with intraperitoneal injection of γ-Al2O3 NPs and α-Al2O3 NPs, respectively, at a dose of 30 mg/kg/b.w. RESULTS: Treatment with γ-Al2O3 NPs resulted in a significant decrease (P < 0.05) in total body weight gain, relative liver weight to body weight, and liver weight in rats. However, co-administration of γ-Al2O3 NPs with Abs significantly increased body weight gain (P < 0.05). Rats treated with Al2O3 NPs (γ and α) exhibited elevated levels of malondialdehyde (MDA), inducible nitric oxide synthase (iNOS), alanine transaminase (ALT), and aspartate aminotransferase (AST). Conversely, treatment significantly reduced glutathione peroxidase (GPx), catalase (CAT), total superoxide dismutase (T-SOD), and total antioxidant capacity (TAC) levels compared to the control group. Furthermore, the expression of heme oxygenase-1 (HO-1) and metallothionein-1 (MT-1) mRNAs, cytochrome P450 (CYP P450) protein, and histopathological changes were significantly up-regulated in rats injected with Al2O3 NPs. Pre-treatment with Abs significantly reduced MDA, AST, HO-1, and CYP P450 levels in the liver, while increasing GPx and T-SOD levels compared to rats treated with Al2O3 NPs. CONCLUSION: The results indicate that Abs has potential protective effects against oxidative stress, up-regulation of oxidative-related genes and proteins, and histopathological alterations induced by Al2O3 NPs. Notably, γ-Al2O3 NPs exhibited greater hepatotoxicity than α-Al2O3 NPs.


Asunto(s)
Artemisia absinthium , Enfermedad Hepática Inducida por Sustancias y Drogas , Animales , Ratas , Hemo-Oxigenasa 1 , Transducción de Señal , Estrés Oxidativo , Sistema Enzimático del Citocromo P-450 , Modelos Animales , Óxido de Aluminio , Peso Corporal
7.
Environ Sci Pollut Res Int ; 30(38): 89859-89876, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37460886

RESUMEN

Hearing loss induced by noise and combinations of factors is a common occupational disease among workers. This study aimed to investigate the impact of acute exposure to white noise and Al2O3 NPs, alone and in combination, on changes in the hearing and structural functions of the cochlea in rats. Thirty-six rats were randomly assigned to one of six groups: Control, acute exposure to white noise, exposure to γ-Al2O3 NPs, exposure to noise plus γ-Al2O3 NPs, exposure to α-Al2O3 NPs, and exposure to the combination of noise plus α-Al2O3 NPs. TTS and PTS were examined using DPOAE, while oxidative index (MDA, GSH-Px), gene expression (NOX3, TGF-ß, CYP1A1), protein expression (ß-Tubulin, Myosin VII), and histopathological changes were examined in the cochlea. The morphology of Al2O3 NPs was examined by TEM. The results of the DPOAE test showed a significant increase in TTS in all groups and an increase in PTS in the groups exposed to noise, γ-Al2O3 NPs, and a combination of noise plus Al2O3 NPs (P < 0.05). In the group exposed to white noise plus Al2O3 NPs, the MDA levels increased, the level of GSH-Px decreased, and the expression percentage of ß-Tubulin and Myosin VII decreased, while the expression of NOX3, TGF-ß, and CYP1A1 (except for the α-Al2O3 NPs group) significantly increased (P < 0.05). Histopathological changes of the cochlea indicated damage to hair and ganglion cells, which was more severe in the combined exposure group. The combined and independent exposure to white noise and Al2O3 NPs damaged hair and ganglion cells for high-frequency perception, affecting the function and structure of the cochlea and leading to TTS and PTS.


Asunto(s)
Pérdida Auditiva Provocada por Ruido , Ratas , Animales , Pérdida Auditiva Provocada por Ruido/genética , Ratas Wistar , Tubulina (Proteína)/metabolismo , Tubulina (Proteína)/farmacología , Citocromo P-450 CYP1A1/metabolismo , Umbral Auditivo , Cóclea/metabolismo , Cóclea/patología
8.
Biol Trace Elem Res ; 201(12): 5607-5615, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36929113

RESUMEN

Non-alcoholic fatty liver disease (NAFLD) is a debilitating disease with adverse effects including cirrhosis and hepatocellular carcinoma. Heavy metals can cause severe dysfunction in different body organs including the liver. This review offers the study regarding the positive or negative association between heavy metals exposure and non-alcoholic fatty liver disease. The method used in this study is a systematic review based on searching in the PubMed, Scopus, and Science direct databases with the keywords of fatty liver, non-alcohol fatty liver, heavy metal, mercury, cadmium, arsenic, chromium, thallium, lead, iron, zinc, and nickel. There were 2200 articles searched in databases, and after assessment, 28 articles were selected. Positive association is established between arsenic, cadmium, iron, lead, mercury, and fatty liver disease. A negative relationship is found between zinc, copper, and progressive fatty liver disease. Furthermore, laboratory methods for NAFLD diagnosis were examined according to the obtained manuscripts. Among the different diagnostic methods, magnetic resonance imaging (MRI) is a sensitive method.


Asunto(s)
Arsénico , Mercurio , Metales Pesados , Enfermedad del Hígado Graso no Alcohólico , Humanos , Cadmio , Metales Pesados/toxicidad , Hierro , Zinc
9.
Hand (N Y) ; 18(2): 222-229, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-33855879

RESUMEN

BACKGROUND: There is limited evidence regarding the efficacy of different treatment options in patients with carpal tunnel syndrome (CTS). This study aimed at assessing the effectiveness of nerve and tendon gliding exercises in the treatment of patients with mild CTS. METHODS: The current prospective, randomized trial with pretest-posttest design was conducted on 80 patients with mild CTS randomly assigned to 2 groups. The treatment group was instructed to perform gliding exercises in addition to the wrist splint use. The control group only used the wrist splint. All the patients were instructed to use the splint at night and during the day if required. Patients were evaluated in terms of clinical parameters (ie, grip and pinch strength). The severity of symptoms and functional status was also determined using the Boston Carpal Tunnel Syndrome Questionnaire. The subjects were followed up for 6 weeks. RESULTS: There were no significant differences in all parameters between groups. The pretest-posttest analysis showed a statistically significant improvement in subjective and objective parameters in the treatment group. However, in the control group, only a significant improvement was observed in grip strength. Wrist splint use led to a significant change in the severity of symptoms only over the second week. CONCLUSIONS: Both gliding exercise and wrist splint groups showed some improvement in the severity of symptoms and functional status scores. However, the gliding exercises did not offer additional benefit compared with wrist splint alone.


Asunto(s)
Síndrome del Túnel Carpiano , Humanos , Síndrome del Túnel Carpiano/diagnóstico , Terapia por Ejercicio , Férulas (Fijadores) , Terapia Combinada , Tendones
10.
Epigenomics ; 14(20): 1269-1280, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-36377555

RESUMEN

Aim: To identify the DNA methylation status of related genes in major depressive disorder following selective serotonin-reuptake inhibitor treatment. Materials & methods: 45 patients with major depressive disorder and 45 healthy volunteers were considered experimental and control groups, respectively. High-resolution melting real-time PCR was implemented to evaluate DNA methylation. Results: After 100 days of selective serotonin-reuptake inhibitor treatment, methylation of promoter CpG sites of BDNF, NR3C1, FKBP5 and SLC6A4 was significantly reduced. Compared with before treatment, patients' Hamilton Depression Rating Scale scores were significantly reduced after selective serotonin-reuptake inhibitor treatment (p ≤ 0.0001). Conclusion: Based on the proven effect of antidepressants on DNA methylation and gene expression, these medications can improve the treatment process and reduce depression scores after treatment.


Asunto(s)
Metilación de ADN , Trastorno Depresivo Mayor , Inhibidores Selectivos de la Recaptación de Serotonina , Humanos , Factor Neurotrófico Derivado del Encéfalo/genética , Factor Neurotrófico Derivado del Encéfalo/metabolismo , Trastorno Depresivo Mayor/tratamiento farmacológico , Trastorno Depresivo Mayor/genética , Regiones Promotoras Genéticas , Receptores de Glucocorticoides/genética , Serotonina/metabolismo , Proteínas de Transporte de Serotonina en la Membrana Plasmática/genética , Proteínas de Transporte de Serotonina en la Membrana Plasmática/metabolismo , Inhibidores Selectivos de la Recaptación de Serotonina/uso terapéutico
11.
Int J Biometeorol ; 66(11): 2147-2158, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36178536

RESUMEN

Thermal stress has a direct effect on various types of DNA damage, which depends on the stage of the cell cycle when the cell is exposed to different climate conditions. A literature review was conducted to systematically investigate and assess the overall effect of heat stress and DNA damage following heat exposure. In this study, electronic databases including PubMed, Scopus, and Web of Science were searched to find relevant literature on DNA damage in different ambient temperatures. Outcomes included (1) measurement of DNA damage in heat exposure, (2) three different quantification methods (comet assay, 8-hydroxy-2-deoxyguanosine (8-OHdG), and γ-H2AX), and (3) protocols used for moderate (31) and high temperatures (42). The evidence shows that long exposure and very high temperature can induce an increase in DNA damage through aggregate in natural proteins, ROS generation, cell death, and reproductive damage in hot-humid and hot-dry climate conditions. A substantial increase in DNA damage occurs following acute heat stress exposure, especially in tropical and subtropical climate conditions. The results of this systematic literature review showed a positive association between thermal stress exposure and inhibition of repair of DNA damage.


Asunto(s)
Daño del ADN , Trastornos de Estrés por Calor , Humanos , 8-Hidroxi-2'-Desoxicoguanosina , Respuesta al Choque Térmico , Calor
12.
Sci Rep ; 12(1): 15963, 2022 09 24.
Artículo en Inglés | MEDLINE | ID: mdl-36153399

RESUMEN

Melatonin (MT), a neurohormone with immunomodulatory properties, is one of the metabolites produced in the brain from tryptophan (TRP) that has already strong links with the neuropathogenesis of Multiple sclerosis (MS). However, the exact molecular mechanisms behind that are not fully understood. There is some evidence showing that MS and MT are interconnected via different pathways: Relapses of MS has a direct correlation with a low level of MT secretion and a growing body of evidence suggest that MT be therapeutic in Experimental Autoimmune Encephalomyelitis (EAE, a recognise animal model of MS) severity. Previous studies have demonstrated that the kynurenine pathway (KP), the main pathway of TRP catabolism, plays a key role in the pathogenesis of MS in humans and in EAE. The present study aimed to investigate whether MT can improve clinical signs in the EAE model by modulating the KP. C57BL/6 mice were induced with EAE and received different doses of MT. Then the onset and severity of EAE clinical symptoms were recorded. Two biological factors, aryl hydrocarbon receptor (AhR) and NAD+ which closely interact in the KP were also assessed. The results indicated that MT treatment at all tested doses significantly decrease the EAE clinical scores and the number of demyelinating plaques. Furthermore, MT treatment reduced the mRNA expression of the KP regulatory enzyme indoleamine 2,3-dioxygenase 1(IDO-1) and other KP enzymes. We also found that MT treatment reduces the mRNA expression of the AhR and inhibits the enzyme Nicotinamide N-Methyltransferase (Nnmt) overexpression leading to an increase in NAD+ levels. Collectively, this study suggests that MT treatment may significantly attenuates the severity of EAE by altering the KP, AhR and NAD+ metabolism.


Asunto(s)
Encefalomielitis Autoinmune Experimental , Melatonina , Esclerosis Múltiple , Animales , Factores Biológicos/uso terapéutico , Modelos Animales de Enfermedad , Encefalomielitis Autoinmune Experimental/tratamiento farmacológico , Humanos , Indolamina-Pirrol 2,3,-Dioxigenasa/metabolismo , Quinurenina/metabolismo , Melatonina/farmacología , Melatonina/uso terapéutico , Ratones , Ratones Endogámicos C57BL , Esclerosis Múltiple/tratamiento farmacológico , NAD/uso terapéutico , Nicotinamida N-Metiltransferasa , ARN Mensajero/uso terapéutico , Receptores de Hidrocarburo de Aril/genética , Índice de Severidad de la Enfermedad , Triptófano/metabolismo
13.
Life Sci ; 308: 120966, 2022 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-36150464

RESUMEN

AIMS: Liver cirrhosis defines by regenerative nodules and fibrotic septa, causing a complication called cirrhotic cardiomyopathy (CCM) with chronotropic hypo-responsiveness. In addition to lowering cholesterol levels, statins yield antioxidant and anti-inflammatory effects. In liver diseases animal models, statins have been shown to decrease hepatic inflammation, fibrogenesis, and portal pressure (PP). Therefore, we evaluated the atorvastatin effect on the heart in cirrhotic rats. MATERIALS AND METHODS: Bile duct ligation (BDL) or sham operation performed on male Wistar rats and grouped as cirrhotic; BDL/Saline, BDL/Ator-7d(days) (Atorvastatin 15 mg/kg/day), and BDL/Ator-14d groups, or control; Sham/Saline, Sham/Ator-7d, and Sham/Ator-14d groups. Corrected QT interval (QTc interval), chronotropic responses, serum brain natriuretic peptides (BNP), heart tumor necrosis factor-α (TNF-α), nuclear factor erythroid 2-related factor 2 (Nrf2), and malondialdehyde (MDA) levels were studied along with atrial Ras homolog family member A (RhoA) and endothelial nitric oxide synthase (eNOS) gene expression. KEY FINDINGS: The chronotropic responses decreased in BDL/Saline and increased in BDL/Ator-7d group. The QTc interval, BNP, TNF-α, and MDA levels increased in BDL/Saline and decreased in BDL/Ator-14d group. The Nrf2 level did not change in BDL/Saline and increased in BDL/Ator-14d group. The liver inflammation and fibrosis increased in BDL/Saline and did not affect BDL/Ator-7d and BDL/Ator-14d groups. The RhoA expression was down-regulated in BDL/Saline, BDL/Ator-7d, and BDL/Ator-14d groups. The eNOS expression did not change in BDL/Saline and down-regulated in BDL/Ator-14d group. SIGNIFICANCE: Atorvastatin alleviates the chronotropic hypo-responsiveness and down-regulates the atrial RhoA and eNOS gene expression along with anti-inflammatory, antioxidant, and anti-stress effects in CCM.


Asunto(s)
Inhibidores de Hidroximetilglutaril-CoA Reductasas , Óxido Nítrico Sintasa de Tipo III , Animales , Masculino , Ratas , Antiinflamatorios/uso terapéutico , Antioxidantes/metabolismo , Atorvastatina/metabolismo , Colesterol/metabolismo , Fibrosis , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Ligadura , Hígado/metabolismo , Cirrosis Hepática/patología , Malondialdehído/metabolismo , Péptidos Natriuréticos/metabolismo , Factor 2 Relacionado con NF-E2/metabolismo , Óxido Nítrico Sintasa de Tipo III/metabolismo , Ratas Wistar , Proteína de Unión al GTP rhoA/metabolismo , Factor de Necrosis Tumoral alfa/metabolismo
14.
IDCases ; 29: e01585, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35928000

RESUMEN

Diabetes mellitus patients are prone to cutaneous and subcutaneous fungal infections due to pathogenic fungi, including dermatophytes, Mucorales, Candida, Aspergillus, and Fusarium species. Here, we report a case of A. flavus mycetoma confirmed by isolation and molecular identification. The case was a 38-year-old male farmer with a seven-year history of type 2 diabetes mellitus, living in Khuzestan, southwest of Iran. The patient presented with a right foot swelling associated with a nodule and multiple discharging sinuses following trauma sustained on the foot while working barefoot on the rice farm, a year ago. The nodule appeared at the site of the trauma two months after the injury. The initial diagnosis was based on direct microscopic examination of lesions scraping using 20% potassium hydroxide and radiology. Molecular analysis confirmed the isolates to be A. flavus. In vitro susceptibility of the isolate to voriconazole, posaconazole, caspofungin, itraconazole, and amphotericin B was determined. Treatment with voriconazole (200 mg twice daily) stopped the purulent discharge, reduced the swelling, and improved the clinical condition within two months. The study emphasizes the importance of wearing footwear to prevent skin trauma as the main risk factor of patient involvement.

15.
Environ Sci Pollut Res Int ; 29(60): 90128-90139, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35864393

RESUMEN

Titanium dioxide (nano-TiO2) is used abundantly in various industrial products and novel medical therapies. In addition, the impact of climate change on the health and safety will undoubtedly increase in the future. However, the effects of exposure to these nanoparticles and heat stress on hippocampal DNA damage and apoptosis remain unclear. This study was conducted to evaluate the DNA damage and apoptosis in the hippocampal tissue and the physiological responses in mice induced by intraperitoneal (i.p.) administration of TiO2 nanoparticles (NPs) and heat stress for 14 consecutive days. The results showed that heat stress and TiO2-NPs were induced in the mouse hippocampus that led to hippocampal reactive oxygen species generation, oxidative damage of DNA, and apoptosis in a partly dose-dependent manner, especially at very hot temperature. High doses of nanosized TiO2 and severe heat stress significantly damaged the function of the hippocampus, as shown in the comet assay and apoptosis tests. The results of this study may provide data for appropriate measures to control and assess the risk of nano-TiO2 and thermal stress hazards to human health, especially workers. Safety guidelines and policies should be considered when handling nanomaterials in a hot environment.


Asunto(s)
Estrés Oxidativo , Políticas , Humanos , Animales , Ratones , Apoptosis
16.
Biomed Chromatogr ; 36(11): e5461, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-35862241

RESUMEN

In this study, a deep eutectic solvent as the acceptor phase was applied in three-phase hollow fiber liquid-phase microextraction for the microextraction of two pyrethroids (permethrin as well as deltamethrin) from environmental water samples prior to HPLC-UV. A deep eutectic solvent was synthesized of tetrabutylammonium bromide-decanoic acid (in a ratio of 1:2) as an acceptor phase and 1-decanol was applied as a supported liquid membrane. Some main variables affecting the extraction recoveries, comprising the types/contents of extraction solvent and acceptor phase, stirring speed, sample phase pH and extraction time, were checked and optimized. Under optimal conditions, the detection limits and limits of quantitation determined were 0.09-0.12 and 0.29-0.39 µgl-1 for deltamethrin and permethrin, respectively. The enrichment factors were 627 and 613, while the relative standard deviations (n = 5) were 4.8 and 5.7%, for deltamethrin and permethrin, respectively. The created technique was assessed as satisfactory to ascertain the two pyrethroid poisons (permethrin and deltamethrin) in environmental water samples.


Asunto(s)
Insecticidas , Microextracción en Fase Líquida , Venenos , Piretrinas , Cromatografía Líquida de Alta Presión/métodos , Disolventes Eutécticos Profundos , Microextracción en Fase Líquida/métodos , Nitrilos , Permetrina , Solventes/química , Agua/química
17.
BMC Pharmacol Toxicol ; 23(1): 32, 2022 05 25.
Artículo en Inglés | MEDLINE | ID: mdl-35614478

RESUMEN

BACKGROUND: Doxorubicin (DOX) is an effective antitumor agent, but its clinical usage is limited due to adverse cardiotoxic effects. Several compounds have been studied to reduce DOX cardiotoxicity to improve its therapeutic index. This study was aimed to investigate the protective effects of sodium thiosulfate (STS) pre-treatment against DOX-induced cardiomyopathy in rats. METHODS: Male Wistar rats were randomized into 4 groups: control (saline), DOX (2.5 mg/kg, 3 times per week, intraperitoneal [i.p.]), STS (300 mg/kg, 3 times per week, i.p), and DOX + STS (30 min prior to DOX injection, 3 times per week, i.p.) over a period of 2 weeks. The body weight, electrocardiography, histopathology, papillary muscle contractility, and oxidative stress biomarkers in heart tissues were assessed. RESULTS: The results indicated that STS significantly improved the body weight (P < 0.01), decreased QRS complex and QT interval on ECG (P < 0.05 and P < 0.001, respectively), as well as declined the papillary muscle excitation, and increased its contraction (P < 0.01) compared to DOX-treated rats. STS strongly suppressed oxidative stress induced by DOX through the significant improvement of the cardiac tissue antioxidant capacity by increasing glutathione, superoxide dismutase (P < 0.001), and decreasing the level of lipid peroxidation (P < 0.01). CONCLUSION: Taken together, the results of this study demonstrated that STS showed potent cardioprotective effects against DOX-induced cardiotoxicity by suppressing oxidative stress.


Asunto(s)
Cardiotoxicidad , Doxorrubicina , Tiosulfatos , Animales , Antioxidantes/uso terapéutico , Peso Corporal , Cardiotoxicidad/etiología , Cardiotoxicidad/prevención & control , Doxorrubicina/toxicidad , Masculino , Miocardio/patología , Estrés Oxidativo , Ratas , Ratas Wistar , Tiosulfatos/uso terapéutico
18.
J Neuroimmunol ; 366: 577840, 2022 05 15.
Artículo en Inglés | MEDLINE | ID: mdl-35259641

RESUMEN

A growing body of evidence demonstrates that an imbalance in the intensive communication between gut microbiota and the host might be associated with immune-related disorders such as multiple sclerosis. This study set out to determine whether antibiotic treatment during pregnancy and lactation can affect the onset and severity of clinical symptoms and inflammatory responses in offspring with experimental autoimmune encephalomyelitis (EAE; a mouse model of multiples sclerosis). Female C57BL/6 mice received antibiotics or vehicles during pregnancy and lactation, then their offspring were induced with EAE in adulthood. We also measured interleukin (IL)-6, tumor necrosis factor (TNF)-α, interferon-gamma (IFN-γ), IL-17A, IL-10, and transforming growth factor (TGF)-ß in the serum of offspring. The findings indicate that antibiotic treatment in dams significantly exacerbated the severity of EAE clinical symptoms in both male and female offspring. However, antibiotic treatment only accelerated the onset of EAE disease in male but not female offspring. We did not find any significant changes in cytokines in non-EAE male and female offspring treated with antibiotics. Antibiotic treatment significantly enhanced levels of IL-6, TNF-α, IFN-γ, IL-17A, and TGF-ß in EAE-induced male offspring, and IFN-γ, IL-17A, and IL-10 levels in EAE-induced female offspring. There were also sex differences in the onset and severity of EAE disease, and inflammatory cytokines (IL-6, IFN-γ, and IL-17A) between EAE-induced male and female offspring treated with antibiotics. Taken together, this study suggests that antibiotic treatment during pregnancy and lactation in dams might affect the development of the immune system in male and female offspring in adulthood.


Asunto(s)
Encefalomielitis Autoinmune Experimental , Esclerosis Múltiple , Animales , Antibacterianos/uso terapéutico , Antibacterianos/toxicidad , Citocinas/metabolismo , Encefalomielitis Autoinmune Experimental/inducido químicamente , Encefalomielitis Autoinmune Experimental/tratamiento farmacológico , Femenino , Interferón gamma/metabolismo , Interleucina-10/uso terapéutico , Interleucina-17 , Interleucina-6 , Lactancia , Masculino , Ratones , Ratones Endogámicos C57BL , Embarazo , Factor de Necrosis Tumoral alfa
19.
Chemosphere ; 294: 133800, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35101429

RESUMEN

Numerous people suffer from accidental or deliberate exposure to different pesticides when poisoning with aluminum phosphate (AlP) is increasing in the eastern countries. Aluminum phosphate is a conventional insecticide that quickly reacts with water or the moistures in the atmosphere and produces fatal phosphine gas, which absorbs quickly by the body. Oral consumption or inhalation of AlP leads to excessive reaction of the body such as fatigue, vomiting, fever, palpitation, vasodilatory shock, increasing blood pressure, cardiac dysfunction, pulmonary congestion, shortness of breath, and death. The garlic smell from the patient's mouth or exhale is one of the methods to recognize the positioning. Due to the lack of individual antidotes, several supportive treatments are required. The present study focused on the available and new therapies that help reduce the effect of AlP poisoning and the mortality rate. The therapies are divided into the antioxidant-related agent and the other agents. The impacts of each agent on the experimental cases are reported.


Asunto(s)
Insecticidas , Intoxicación por Organofosfatos , Plaguicidas , Fosfinas , Intoxicación , Compuestos de Aluminio , Antídotos/uso terapéutico , Humanos , Plaguicidas/toxicidad , Intoxicación/terapia
20.
Drug Res (Stuttg) ; 72(4): 197-202, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35176794

RESUMEN

Hydrogen sulfide (H2S) is a toxic compound known as a member of the gasotransmitter family. H2S has the ability to inhibit the cytochrome c oxidase enzyme in the mitochondrial respiratory chain. Mitochondria play an important role in energy production and the brain needs energy for normal function. Mitochondrial dysfunction is associated with neurodegenerative diseases. This study investigated the mechanisms of cytotoxicity induced by H2S in brain neurons. thioacetamide has been used to produce H2S in water solutions. The results of the study showed that thioacetamide at concentrations of 116, 232 and 464 µg/ml was able to increase the level of reactive oxygen species (ROS), collapse in mitochondrial membrane potential (MMP), damage to the lysosomal membrane, increase in the level of oxidized glutathione (GSSG) and decrease in the level of reduced glutathione (GSH) in brain neurons. The results of the study suggested that H2S causes damage to mitochondria and lysosomes in brain neurons that could be associated with neurodegenerative diseases.


Asunto(s)
Sulfuro de Hidrógeno , Enfermedades Neurodegenerativas , Animales , Encéfalo , Glutatión , Sulfuro de Hidrógeno/toxicidad , Neuronas , Ratas , Especies Reactivas de Oxígeno , Tioacetamida
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