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1.
Spectrochim Acta A Mol Biomol Spectrosc ; 284: 121795, 2023 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-36063735

RESUMO

Magnetic field is used as an adjunct therapy for pain control and relief of musculoskeletal pain conditions as Fibromyalgia. It is regarded as more natural and less harmful alternative to analgesic compounds. The exact mechanism underlying these positive effects is still to be determined. Twenty-three patients diagnosed with Fibromyalgia condition were included in this study, and subjected to extremely low magnetic field treatment sessions. The treatment protocol based on exposing patients to gradually increased magnetic field strength that starts with 0.1 µT at the beginning, and increased gradually to 100 µT (3.33 µT/min). UV-Visible, mid-IR and fluorescence characteristics of whole blood, erythrocytes and hemoglobin were investigated; in addition to RBCs-osmotic fragility measurements. The obtained results were analyzed according to control-sham exposed patients. We observed marked changes in the blood (and/or its constituents) absorption spectra of fibromyalgia patients that indicate an enhancement in the energetic pathways and increased hemoglobin-oxygen affinity; in addition, the osmotic fragility measurements show that erythrocytes were characterized by increased elasticity and rehydration. The analyses of infrared spectra show that magnetic field treatment was associated with changes in the erythrocytes skeleton where α-helix component of protein secondary structure is dominant. This study provides scientific evidence that pain relief associated with extremely low magnetic field treatment can be directly related to its systemic effects as well as the enhancement of the cellular activities.


Assuntos
Fibromialgia , Fibromialgia/tratamento farmacológico , Hemoglobinas , Humanos , Campos Magnéticos , Oxigênio , Dor
2.
Sci Rep ; 11(1): 20014, 2021 10 08.
Artigo em Inglês | MEDLINE | ID: mdl-34625583

RESUMO

Hepatitis B virus (HBV) infection is a significant health issue worldwide.. We attempted to fulfill the molecular mechanisms of epigenetic and genetic factors associated with chronic HBV (CHBV). Expression levels of the lncRNA growth arrest-specific 5 (GAS5) and miR-137 and their corresponding SNPs, rs2067079 (C/T) and rs1625579 (G/T) were analyzed in 117 CHBV patients and 120 controls to investigate the probable association between these biomarkers and CHBV pathogenesis in the Egyptian population. Serum expression levels of GAS5 and miR-137 were significantly down-regulated in cases vs controls. Regarding GAS5 (rs2067079), the mutant TT genotype showed an increased risk of CHBV (p < 0.001), while the dominant CC was a protective factor (p = 0.004). Regarding miR-137 rs1625579, the mutant genotype TT was reported as a risk factor for CHBV (p < 0.001) and the normal GG genotype was a protective factor, p < 0.001. The serum GAS5 was significantly higher in the mutant TT genotype of GAS5 SNP as compared to the other genotypes (p = 0.007). Concerning miR-137 rs1625579, the mutant TT genotype was significantly associated with a lower serum expression level of miR-137 (p = 0.018). We revealed the dysregulated expression levels of GAS5 and miR-137 linked to their functioning SNPs were associated with CHBV risk and might act as potential therapeutic targets.


Assuntos
Hepatite B Crônica , MicroRNAs , RNA Longo não Codificante , Adulto , Biomarcadores/análise , Egito/epidemiologia , Feminino , Predisposição Genética para Doença , Hepatite B/epidemiologia , Hepatite B/genética , Hepatite B Crônica/epidemiologia , Hepatite B Crônica/genética , Humanos , Masculino , MicroRNAs/análise , MicroRNAs/genética , Polimorfismo de Nucleotídeo Único , RNA Longo não Codificante/análise , RNA Longo não Codificante/genética
3.
J Interferon Cytokine Res ; 38(11): 517-525, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30383471

RESUMO

Helicobacter pylori is a ubiquitous Gram-negative bacterium, that is responsible for gastric mucosal inflammation. It is the most common risk factor for gastric cancer (GC). The current study aimed to investigate the association between interleukin-11 (IL-11) and leukemia inhibitory factor (LIF) levels among H. pylori-infected Egyptian patients with gastritis and GC. One hundred forty-seven patients with gastric lesions were endoscopically biopsied and assessed using rapid urease test and immunohistochemistry. Quantitative real-time polymerase chain reaction was done for the detection of H. pylori load in gastric biopsies and detection of LIF as well as IL-11 relative gene expression. The mean values of H. pylori load, LIF, and IL-11 were significantly elevated in GC patients compared to gastritis group (P < 0.0001). A positive significant correlation was detected between mucosal levels of LIF, IL-11, and H. pylori load in both groups. Both LIF and IL-11 had the same pattern of expression in gastric tissues with different types of gastritis and different types and grades of gastric carcinoma. This report could clarify the molecular events associated with the immune response against H. pylori infection and H. pylori-associated pathology. Therefore, development of immunotherapy strategies against H. pylori-induced cytokines becomes inevitable.


Assuntos
Infecções por Helicobacter/imunologia , Infecções por Helicobacter/microbiologia , Helicobacter pylori/patogenicidade , Interleucina-11/imunologia , Fator Inibidor de Leucemia/metabolismo , Adulto , Egito , Feminino , Gastrite/genética , Gastrite/imunologia , Gastrite/microbiologia , Infecções por Helicobacter/genética , Humanos , Interleucina-11/genética , Fator Inibidor de Leucemia/genética , Masculino , Pessoa de Meia-Idade , Neoplasias Gástricas/genética , Neoplasias Gástricas/imunologia , Neoplasias Gástricas/microbiologia
4.
J Exp Zool A Ecol Genet Physiol ; 323(3): 146-59, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25675939

RESUMO

The present experiments investigated the effect of water quality characteristics on the condition factor, the ovarian activity, cortisol level, and the immunoreactivity of stress-response cells (adrenocorticotropic hormone; ACTH- and melanin stimulating hormone; MSH- and somatolactin; SL- secreting cells) and gonadotropin (GTH)-secreting cells in the pituitary gland of Nile tilapia, Oreochromis niloticus. After 3 months of exposure to mixtures of water from different sources (Tap and Lake Manzalah waters), with high levels of minerals and heavy metals, water quality affected the number, size, and immunostaining of stress-response-immunoreactive (ir) cells and GTH-ir cells, which showed a dramatic decrease in their size. The integrated optical density (IOD) of immunoreactivity of MSH- and GTH- cells was significantly increased; however, it was significantly decreased for ACTH- and SL- cells. Also, high levels of cortisol were observed in females exposed to waters with high concentrations of minerals and heavy metals. In parallel, low values of gonadosomatic index (GSI%) and the ovarian histology revealed a decrease of maturing follicles concomitant with an increase of atretic follicles in females exposed to Lake Manzalah polluted water. Taken together, the increased activity of stress-response-ir pituitary cells, serum cortisol level and ovarian atretic follicles in response to elevated concentrations of minerals and heavy metals, supports the possible role of ACTH, MSH, and SL in the adaptive stress response of fish. Therefore, minerals and heavy metals must be considered when discussing tilapia aquaculture status.


Assuntos
Gonadotropinas/análise , Hidrocortisona/sangue , Metais Pesados/toxicidade , Folículo Ovariano/efeitos dos fármacos , Hipófise/efeitos dos fármacos , Poluentes Químicos da Água/toxicidade , Qualidade da Água , Animais , Ciclídeos/sangue , Ciclídeos/metabolismo , Feminino , Gonadotropinas/imunologia , Folículo Ovariano/química , Hipófise/química , Hipófise/imunologia , Estresse Fisiológico
5.
J Exp Zool A Ecol Genet Physiol ; 317(7): 410-24, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22628286

RESUMO

The present experiments were designed to determine the effect of different stress factors; handling, seawater acclimation, confinement, and induced spawning on plasma cortisol, hydro mineral balance as well as changes in size, number and integrated intensity of somatolactin (SL)-expressing cells in Liza ramada mature females confined to fresh water ponds. The plasma levels of cortisol, PO(4)(3-), Na(+), and K(+) were higher, while Ca(2+) and Mg(2+) were lower than controls during transportation without anesthesia. By using clove oil (5 mg L(-1)) as an anesthetic during transportation, the plasma cortisol, PO(4) (3-), Na(+), and K(+) were similar to controls, while Ca(2+) and Mg(2+) were higher. During seawater acclimation, the plasma cortisol and minerals were significantly higher except Na(+) which was lower than controls. In addition, during induction of spawning, the plasma levels of cortisol, PO(4)(3-), Na(+), K(+), and Mg(2+) were significantly higher than controls. The SL-producing cells are located in the pars intermedia (PI) bordering the neurohypophysis. The stress affected the number, size, and immunostaining of SL-expressing cells. During seawater acclimation, the size and the integrated intensity of SL immunoreactivity were lower, but the number of these cells was higher than controls. Furthermore, the number, size, and the integrated intensity of SL immunoreactivity were significantly lower than controls during handling and after spawning, which was opposite to confinement. The response of SL-expressing cells in PI in parallel with changes in cortisol and hydro mineral balance induced by stress support the possible role of SL in the adaptive response of fish to stress.


Assuntos
Eletrólitos/sangue , Proteínas de Peixes/biossíntese , Glicoproteínas/biossíntese , Hidrocortisona/sangue , Hormônios Hipofisários/biossíntese , Smegmamorpha/metabolismo , Estresse Fisiológico/fisiologia , Animais , Aquicultura , Feminino , Imuno-Histoquímica/veterinária , Masculino , Hipófise/metabolismo , Reprodução/fisiologia , Água do Mar , Smegmamorpha/sangue
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