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1.
Am J Hematol ; 99(6): 1023-1030, 2024 06.
Artigo em Inglês | MEDLINE | ID: mdl-38488686

RESUMO

Allogeneic hematopoietic stem cell transplant (HSCT) for adults with severe sickle cell disease (SCD) is potentially curative but not commonly utilized therapy due to complications such as graft failure (GF) and organ toxicity. Herein, we are reporting our long-term outcome data of non-myeloablative (NMA) HSCT in adults with severe SCD with emphasis on factors predicting event free survival (EFS). Adults with severe SCD undergoing NMA match-related donor allogeneic HSCT from 2015 to 2021 with at least 12 months of follow-up were included. A total of 200 patients were included with a median age of 26 years (14-43) and 56% were male. The median infused CD34 dose was 13.7 (5.07-25.8), respectively. Median absolute neutrophil count engraftment was 19 (13-39) days with 51% of patients receiving GCSF to expedite recovery. A total of 17 patients experienced GF; 3 as primary and 14 as secondary within a median time of 204 days (40-905). A 76% successfully discontinued sirolimus at the last follow-up. Median follow-up for the cohort is 29.2 (2.1-71.4) months. Estimated 3-year EFS and OS were 88.2% (81.9-92.5) and 94.6% (89.2-97.3). At multivariable analysis, minor ABC incompatibility hazard ratio (HR) 4 (1.3-12.1; 0.014) and allo-antibody against non-ABO donor antigens HR 4.3 (1.3-14.1; 0.016) were significant for EFS. No clonal evolution or myeloid malignancies were seen. This largest single-center report of NMA HSCT in adults with severe SCD further delineated its feasibility, potential toxicities, and fertility outcomes. GF remains a major impediment and appears dependent on ABO matching and non-ABO antibodies.


Assuntos
Anemia Falciforme , Transplante de Células-Tronco Hematopoéticas , Humanos , Adulto , Masculino , Feminino , Anemia Falciforme/terapia , Transplante de Células-Tronco Hematopoéticas/métodos , Adolescente , Adulto Jovem , Transplante Homólogo , Resultado do Tratamento , Condicionamento Pré-Transplante/métodos , Doença Enxerto-Hospedeiro/etiologia , Seguimentos , Estudos Retrospectivos , Aloenxertos
2.
Photochem Photobiol Sci ; 23(2): 377-385, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38280133

RESUMO

Improved sperm motility is necessary for successful sperm passage through the female genital system, efficacious fertilization, and a greater probability of pregnancy. By stimulating the mitochondrial respiratory chain, low-level laser photobiomodulation has been shown to increase sperm motility and velocity. The respiratory chain in mitochondria is the primary site of action for cytochrome c oxidase because it can absorb light in the visible and infrared ranges. The present study aimed to investigate the effects of red laser 650 nm, near infrared laser (NIR) 980 nm, and combination of both on human spermatozoa motility and DNA integrity at different doses. An in-vitro controlled trial was performed in Al Zahraa university hospital laboratory using thirty fresh human semen specimens. Samples were exposed to red laser 650 nm, near infrared laser (NIR) 980 nm, and combination of both for various irradiation times. Sperm motility for the test and control aliquots was assessed as recommended in the manual of WHO-2021. Sperm chromatin integrity was evaluated using the Sperm Chromatin Structure Assay. Results revealed almost 70%, 80% and 100% increase in the total motility after 3 min of the 650-nm, 980-nm and the combined laser irradiation, respectively. Additionally, the Sperm Chromatin Dispersion assay was carried out on sperm heads utilizing human sperm DNA fragmentation, demonstrating that none of the three laser types had any discernible effects.


Assuntos
Sêmen , Motilidade dos Espermatozoides , Gravidez , Humanos , Masculino , Feminino , Motilidade dos Espermatozoides/efeitos da radiação , Espermatozoides/efeitos da radiação , Lasers , Cromatina
3.
BMC Emerg Med ; 24(1): 119, 2024 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-39014307

RESUMO

INTRODUCTION: The assessment of hemodynamic status in polytrauma patients is an important principle of the primary survey of trauma patients, and screening for ongoing hemorrhage and assessing the efficacy of resuscitation is vital in avoiding preventable death and significant morbidity in these patients. Invasive procedures may lead to various complications and the IVC ultrasound measurements are increasingly recognized as a potential noninvasive replacement or a source of adjunct information. AIMOF THIS STUDY: The study aimed to determine if repeated ultrasound assessment of the inferior vena cava (diameter, collapsibility (IVC- CI) in major trauma patients presenting with collapsible IVC before resuscitation and after the first hour of resuscitation will predict total intravenous fluid requirements at first 24 h. PATIENTS & METHODS: The current study was conducted on 120 patients presented to the emergency department with Major blunt trauma (having significant injury to two or more ISS body regions or an ISS greater than 15). The patients(cases) group (shocked group) (60) patients with signs of shock such as decreased blood pressure < 90/60 mmHg or a more than 30% decrease from the baseline systolic pressure, heart rate > 100 b/m, cold, clammy skin, capillary refill > 2 s and their shock index above0.9. The control group (non-shocked group) (60) patients with normal blood pressure and heart rate, no other signs of shock (normal capillary refill, warm skin), and (shock index ≤ 0.9). Patients were evaluated at time 0 (baseline), 1 h after resucitation, and 24 h after 1st hour for:(blood pressure, pulse, RR, SO2, capillary refill time, MABP, IVCci, IVCmax, IVCmin). RESULTS: Among 120 Major blunt trauma patients, 98 males (81.7%) and 22 females (18.3%) were included in this analysis; hypovolemic shocked patients (60 patients) were divided into two main groups according to IVC diameter after the first hour of resuscitation; IVC repleted were 32 patients (53.3%) while 28 patients (46.7%) were IVC non-repleted. In our study population, there were statistically significant differences between repleted and non-repleted IVC cases regarding IVCD, DIVC min, IVCCI (on arrival) (after 1 h) (after 24 h of 1st hour of resuscitation) ( p-value < 0.05) and DIVC Max (on arrival) (after 1 h) (p-value < 0.001). There is no statistically significant difference (p-value = 0.075) between repleted and non-repleted cases regarding DIVC Max (after 24 h).In our study, we found that IVCci0 at a cut-off point > 38.5 has a sensitivity of 80.0% and Specificity of 85.71% with AUC 0.971 and a good 95% CI (0.938 - 1.0), which means that IVCci of 38.6% or more can indicate fluid responsiveness. We also found that IVCci 1 h (after fluid resuscitation) at cut-off point > 28.6 has a sensitivity of 80.0% and Specificity of 75% with AUC 0.886 and good 95% CI (0.803 - 0.968), which means that IVCci of 28.5% or less can indicate fluid unresponsiveness after 1st hour of resuscitation. We found no statistically significant difference between repleted and non-repleted cases regarding fluid requirement and amount of blood transfusion at 1st hour of resuscitation (p-value = 0.104). CONCLUSION: Repeated bedside ultrasonography of IVCD, and IVCci before and after the first hour of resuscitation could be an excellent reliable invasive tool that can be used in estimating the First 24 h of fluid requirement in Major blunt trauma patients and assessment of fluid status.


Assuntos
Serviço Hospitalar de Emergência , Hidratação , Ressuscitação , Ultrassonografia , Veia Cava Inferior , Ferimentos não Penetrantes , Humanos , Veia Cava Inferior/diagnóstico por imagem , Feminino , Masculino , Adulto , Ferimentos não Penetrantes/diagnóstico por imagem , Ferimentos não Penetrantes/terapia , Hidratação/métodos , Ressuscitação/métodos , Pessoa de Meia-Idade , Hospitais Universitários , Adulto Jovem , Estudos Prospectivos , Irã (Geográfico)
4.
J Neuroradiol ; 51(4): 101190, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38492800

RESUMO

BACKGROUND AND PURPOSE: BT-RADS is a new framework system for reporting the treatment response of brain tumors. The aim of the study was to assess the diagnostic performance and reliability of the BT-RADS in predicting the recurrence of high-grade glioma (HGG). MATERIALS AND METHODS: This prospective single-center study recruited 81 cases with previously operated and pathologically proven HGG. The patients underwent baseline and follow-up contrast-enhanced MRI (CE-MRI). Two neuro-radiologists with ten years-experience in neuroimaging independently analyzed and interpreted the MRI images and assigned a BT-RADS category for each case. To assess the diagnostic accuracy of the BT-RADS for detecting recurrent HGG, the reference standard was the histopathology for BT-RADS categories 3 and 4, while neurological clinical examination and clinical follow up were used as a reference for BT-RADS categories 1 and 2. The inter-reader agreement was assessed using the Cohen's Kappa test. RESULTS: The study included 81 cases of HGG, of which 42 were recurrent and 39 were non-recurrent HGG cases based on the reference test. BT-RADS 3B was the best cutoff for predicting recurrent HGG with a sensitivity of 90.5 % to 92.9 %, specificity of 76.9 % to 84.6 %, and accuracy of 83.9 % to 88.9 %, based on both readers. The BT-RADS showed a substantial inter-reader agreement with a K of 0.710 (P = 0.001). CONCLUSIONS: The BT-RADS is a valid and reliable framework for predicting recurrent HGG. Moreover, BT-RADS can help neuro-oncologists make clinical decisions that can potentially improve the patient's outcome.


Assuntos
Neoplasias Encefálicas , Glioma , Imageamento por Ressonância Magnética , Recidiva Local de Neoplasia , Humanos , Glioma/diagnóstico por imagem , Glioma/patologia , Glioma/terapia , Feminino , Masculino , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/patologia , Neoplasias Encefálicas/terapia , Pessoa de Meia-Idade , Imageamento por Ressonância Magnética/métodos , Reprodutibilidade dos Testes , Recidiva Local de Neoplasia/diagnóstico por imagem , Estudos Prospectivos , Adulto , Idoso , Sensibilidade e Especificidade , Meios de Contraste , Gradação de Tumores
5.
Endocr Regul ; 57(1): 25-36, 2023 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-36753665

RESUMO

Objective. Ovarian torsion is a gynecological emergency that occurs mostly during the female reproductive years due to ovarian masses or surgical manipulation. This work aims to explore the probable protective effect of leptin on rat ovaries due to ischemia-reperfusion (IR) injury. Methods. Wistar albino rats were divided into four groups: 1) control group; 2) ovarian IR group (OVIR); 3) leptin group I [OVIR + leptin (10 µg/kg body weight, b.w.)]; and 4) leptin group II (OVIR + leptin (100 µg/kg b.w.)]. Serum levels of estradiol and anti-Mullerian hormone (AMH) were measured. Levels of oxidative stress and inflammatory markers in ovarian tissue were determined along with the expression of sirtuin 1 (Sirt1), nuclear erythroid factor-2 (Nrf2), cyclooxygenase-2 (COX-2), nuclear factor kappa (NF-κB), toll like receptor-4 (TLR4), and caspase-3. Results. Serum estradiol and AMH levels were decreased with increased expression of COX-2, TLR4, caspase-3, and NF-κB and decreased expression of Sirt1and Nrf2 in ovary of the OVIR group, which were improved by exogenous administration of both leptin doses. Conclusion. Leptin administration dose-dependently reduced the severity of OVIR injury via modulation of Sirt-1/Nrf2 and TLR4/NF-kB/caspase-3 signaling pathways. Thus, leptin may be used as an adjuvant measure to prevent ovarian damage and improve the outcomes. However, clinical studies are needed to evaluate these results in humans.


Assuntos
NF-kappa B , Traumatismo por Reperfusão , Animais , Feminino , Ratos , Caspase 3/metabolismo , Caspase 3/farmacologia , Ciclo-Oxigenase 2/metabolismo , Ciclo-Oxigenase 2/farmacologia , Estradiol/farmacologia , Estradiol/metabolismo , Leptina/farmacologia , Leptina/metabolismo , Fator 2 Relacionado a NF-E2 , NF-kappa B/metabolismo , Ovário , Ratos Wistar , Traumatismo por Reperfusão/tratamento farmacológico , Traumatismo por Reperfusão/metabolismo , Transdução de Sinais , Receptor 4 Toll-Like
6.
Saudi Pharm J ; 31(9): 101712, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37601142

RESUMO

Aim and Objectives: The study sought to identify parental trends in children's self-medication, health-seeking behavior, knowledge of self-medication, antibiotic use, and antimicrobial resistance in Asir, Saudi Arabia. Methods: A web-based cross-sectional study was carried out by a survey questionnaire. Snow Ball sampling technique was used to select the Eight hundred and sixteen parents with children in the Asir region by WhatsApp and email, and 650 participants who met the inclusion criteria consented to participate in the study. Results: There were 1809 episodes of childhood illnesses reported during the study period. The mean scores are on knowledge at 8.11 ±â€¯2.43, favorable attitude at 17.60 ±â€¯1.17, and practice was 7.72 ±â€¯1.72, and a significant correlation was found between knowledge, attitude, and practice (KAP) at p = 0.01. Out of 624, the majority of parents showed strong knowledge and proficiency in antibiotics. However, the attitude scores of over 50% towards the usage of antibiotics were subpar. Around 54% of parents were self-medicating their children and 43% were unaware that skipping doses contributes to anti-microbial resistance (AMR). The facilitators for self-medication were male gender (aOR: 2.13; 95% CI: 1.26-3.98, p < 0.05), having more children (aOR: 2.78; 95% CI: 1.27-4.12 p < 0.01), professional qualification (aOR:3.07; 95% CI 1.57- 4.68; p < 0.01), residing in urban area (aOR: 3.17; 95% CI: 2.13-5.61, p < 0.05), working in health care (aOR: 5.99; 95% CI: 1.78-18.2, p < 0.01) and high income (aOR: 3.57; 95% CI: 2.08-6.34, p < 0.05). Conclusions: The findings indicated that the majority of parents had unfavorable views and improper practices of antibiotic usage. Strategic education programs to the targeted population, especially to the parents about side effects of antibiotics, dangerous consequences of self-medication, and crucial AMR concerns must be addressed immediately.

7.
Lupus ; 31(1): 89-96, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35019799

RESUMO

BACKGROUND: The skin and the kidney are commonly affected in systemic lupus erythematosus (SLE) with similar molecular mechanisms. Although clinical indicators of renal injury in SLE are fairly uncontroversial, few biomarkers are reliable. The role of micro-RNAs (mi-RNAs) in lupus nephritis (LN) pathogenesis has been investigated to help in early diagnosis. PURPOSE: The aim of work is to evaluate miRNA132 and SOX2 expressions in SLE Egyptian patients; with and without nephritis, and the relation between miRNA132 and its long non-coding gene SOX2 in both patients groups. RESEARCH DESIGN: This is a case-control study involving 100 SLE patients with and without LN (LN and non-LN groups), and 50 age-and sex-matched healthy controls. The study was carried out to detect miRNA132 and SOX2 expression by quantitative Real-Time Polymerase chain reaction methods. The SLE disease activity index (SLEDAI) was assessed. RESULTS: SLEDAI increased in LN compared to non-LN. Micro-RNA132 expression was significantly increased in patient groups compared to controls (p<0.01) and increased in LN more than non-LN group (p<0.001). SOX2 significantly decreased in patient groups compared to controls (p<0.001), and was more in LN compared to non-LN group (p<0.001). There was a negative correlation between miRNA132 and SOX2 expression in both patient groups (p<0.001). CONCLUSION: miRNA132 and SOX2 may play a role in SLE activity and help in the early non-invasive diagnosis of LN.


Assuntos
Lúpus Eritematoso Sistêmico , Nefrite Lúpica , MicroRNAs , Biomarcadores , Estudos de Casos e Controles , Humanos , Lúpus Eritematoso Sistêmico/diagnóstico , Lúpus Eritematoso Sistêmico/genética , Nefrite Lúpica/diagnóstico , Nefrite Lúpica/genética , MicroRNAs/genética , Fatores de Transcrição SOXB1/química , Fatores de Transcrição SOXB1/genética
8.
Mediators Inflamm ; 2022: 8353472, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36578323

RESUMO

Aim: This study is aimed at evaluating the use of curcumin-loaded polylactic-co-glycolic acid nanoparticles (CUR-loaded PLGA NPs) as a treatment against monosodium iodoacetate- (MIA-) induced knee OA. Materials and Methods: Eighteen rats were assigned to three groups (n = 6), namely, normal control group that received intra-articular injections (IAIs) of saline, an OA control group that received an IAIs of MIA (2 mg/50 µL), and a treatment group (MIA+CUR-loaded PLGA NPs) that received IAIs of CUR-loaded PLGA NPs (200 mg/kg b.wt). Results: The CUR NP treatment against knee OA alleviated radiographic alternations and histopathological changes and inhibited the upregulation in the serum levels of interleukin-1ß, tumor necrosis factor-α, interleukin-6, and transforming growth factor-beta and the downregulation in interleukin-10. CUR NP-treated joints also decreased the mRNA expression of nuclear factor-kappa B and inducible nitric oxide synthase and the protein expression of matrix metalloproteinase-13 and caspase-3. Finally, CUR-loaded PLGA NP treatment mitigated the loss of type II collagen, which resulted in a significant reduction in malondialdehyde level and increased the glutathione content and superoxide dismutase activity compared with that of the OA group. Conclusion: This study demonstrated that the administration of CUR NPs could provide effective protection against MIA-induced OA and knee joint histological deteriorated changes due to its anti-inflammatory, antioxidant, and antiapoptotic properties.


Assuntos
Curcumina , Nanopartículas , Osteoartrite do Joelho , Ratos , Animais , Curcumina/uso terapêutico , Curcumina/farmacologia , Ácido Iodoacético/toxicidade , Anti-Inflamatórios/uso terapêutico , Anti-Inflamatórios/farmacologia , Nanopartículas/uso terapêutico
9.
Immunopharmacol Immunotoxicol ; 44(4): 613-620, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35506611

RESUMO

BACKGROUND: The increased use of indomethacin (IND) is associated with gastrointestinal injury. This research aims to investigate the effects of a beta-blocker, carvedilol (CAR) on a rat model of IND-induced acute intestinal damage and clarify the probable underlying protective mechanisms. MATERIALS AND METHODS: Twenty-four male Wistar rats were divided into four groups. Control group: given vehicles; CAR-treated group: given 10 mg/kg/day CAR PO daily by gastric gavage for 10 consecutive days; IND-treated group: given a single Sc dose of 10 mg/kg IND at the end of the ninth day of the experiment; combined CAR/IND-treated group: given both IND and CAR. RESULTS: In the rats that received IND, severe intestinal histopathological changes together with oxidative and nitrosative intestinal stress were present biochemically and immunohistochemically. Obvious inflammatory and tissue damage were represented by the significant intestinal increases in TNF-α, COX-2, and caspase-3 together with the elevated expression of VCAM-1 adhesion molecules. Intestinal gene expression of NF-kB and COX-2 was also increased. Pretreatment with CAR significantly reversed the IND-induced intestinal toxic manifestations. CONCLUSION: CAR has beneficial intestinal protective effects. Its ameliorative action is conferred through its antioxidant, antinitrosative, anti-inflammatory, and antiapoptotic properties.


Assuntos
NF-kappa B , Fator de Necrose Tumoral alfa , Animais , Carvedilol/farmacologia , Ciclo-Oxigenase 2/metabolismo , Indometacina/farmacologia , Masculino , NF-kappa B/metabolismo , Ratos , Ratos Wistar , Transdução de Sinais , Fator de Necrose Tumoral alfa/metabolismo
10.
Chem Zvesti ; 76(10): 6415-6426, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35812721

RESUMO

It is critical to characterize the degradation products of therapeutic drugs to determine their safety as these degradation products may possess fatal effects on the human physiological system. Favipiravir (FVP), a novel anti-Covid-19 drug, that is recently used all over the world with a great impact on humanity was our target to explore more about its toxicity, the margins of its safety, and its degradants in different degradation conditions. The goal of this study is to identify, characterize, and confirm the structures of FVP oxidative and alkaline breakdown products, as well as to assess their safety utilizing in-vitro SRB cytotoxicity assay on normal human skin fibroblasts (NHSF) cell lines. After oxidative and alkaline degradation of FVP, one degradation product was produced in each condition which was isolated from FVP using flash chromatography, characterized by 1HNMR and LC-MS/MS techniques. A reversed-phase Thermo Fischer Hypersil C18 column (4.6 × 150 mm, 5 m) was used to achieve HPLC chromatographic separation. Acetonitrile-5 mM potassium dihydrogen phosphate (pH 2.5) (50:50, v/v) was employed as the mobile phase, with a flow rate of 1 mL/min. At 332 nm, the column effluent was measured. Over the concentration range of 0.5-100 µg/mL, the calibration curve was linear. The intra-day and inter-day relative standard deviations were less than 2%, and good percentage recoveries were obtained that fulfilled the acceptance criteria of the International Conference on Harmonization (ICH) recommendations. The Plackett-Burman design was used to assess the robustness. Each degradant was isolated single using Flash chromatography and methylene chloride: methanol gradient mobile phase. The chemical structures of the degradation products have been confirmed and compared to the intact FVP using 1H-NMR, and Mass spectroscopy. A postulated mechanism of the degradation process has been depicted and the degradants fragmentation pattern has been portrayed. In addition, the in vitro SRB cytotoxicity assay to evaluate the safety profile of FVP and the degradation end products showed their high safety margin in both conditions with IC50 ˃100 µg/ml with no signs of toxicity upon examination of the treated NHSF cells under the optical microscope.

11.
Radiat Environ Biophys ; 60(1): 193-201, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33221962

RESUMO

Cancer is a widespread significant health problem in Iraq and contributes 11% to total deaths. Throughout the Gulf Wars of 1991 and 2003, about 1200 tons of ammunition were dropped around Iraq. After the wars, cancer incidence in Iraq is about 7,000 to 8,000 cancers cases per year, and the overall incidence of lymphoma, leukemia, breast cancer, and lung cancer has increased twofold and even tripled, as compared to the time before the wars. This increase could result from environmental pollution with radioactive materials including uranium, as cancer can be caused by ionizing radiation. To investigate this hypothesis, uranium concentration in the blood of 64 Iraqi females has been measured by means of CR-39 track etch detectors (42 blood samples collected from females diagnosed with breast cancer and 22 blood samples from females without breast cancer). The results show that the uranium concentrations ranged from 19.1 ± 0.3 to 238.4 ± 0.4 with an average value of 94.9 ± 5.0 ng L-1 in the blood of women with breast cancer and from 5.2 ± 0.2 to 18.7 ± 0.04 with an average value of 10.5 ± 0.1 ng L-1 in the blood of women without breast cancer. In comparison with the literature data, elevated levels of uranium concentration were recorded in both groups, and significantly higher average uranium concentrations were found in the blood of women with breast cancer as compared to those in the blood samples of women without breast cancer. It is concluded that there is a correlation between the incidence of breast cancer in Iraqi women and elevated levels of uranium concentrations in their blood. Whether this is a casual relationship is unclear, because cancer can be caused by various carcinogens, including environmental pollution in the region.


Assuntos
Neoplasias da Mama/sangue , Urânio/sangue , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/cirurgia , Feminino , Guerra do Golfo , Humanos , Incidência , Iraque , Pessoa de Meia-Idade , Monitoramento de Radiação
12.
Molecules ; 25(21)2020 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-33113816

RESUMO

Green, economic and sensitive two spectrofluorometric methods were developed for the quantitation of flibanserin (FB) in different matrices, which are based on FB native fluorescence properties. The first technique depends on measuring the relative fluorescence intensity of FB directly at emission and excitation wavelengths(λem/λex) (371 nm/247 nm), while the second technique is a first derivative (D1) spectrofluorometric method, which depends on measuring the peak amplitudes at 351 nm. Linear regressions were observed in the range of 0.1-1.5 µg/mL for both methods. Moreover, both methods were efficiently extended to analyze FB in human urine, indicating the ultra-sensitivity of the methods, and linear regression was found within a range 0.05-0.7 µg/mL for both methods. Excellent selectivity of the proposed methods and good recoveries were obtained upon the analysis of FB in pharmaceutical dosage form and human urine samples without interference from matrix components with acceptable ranges, from 98.86 to 101.46% and from 98.08 to 102.37%, respectively. Greenness of the developed methods was assessed using the national environmental method index (NEMI) and Analytical Eco-scale and Green Analytical Procedure Index (GAPI). The three approaches confirmed that the developed methods are green, safe and environment-friendly.


Assuntos
Benzimidazóis/urina , Química Verde , Humanos , Limite de Detecção , Reprodutibilidade dos Testes , Solventes/química , Espectrometria de Fluorescência
13.
Endocr Regul ; 53(1): 26-33, 2019 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-31517617

RESUMO

OBJECTIVE: The aim of the present study was to assess the effect of the PYY3-36, as a potential therapy for the type 2 diabetes mellitus (T2DM), induced by high fat diet (HFD) and an intraperitoneal (i.p.) administration of streptozotocin (STZ) in albino rats. METHODS: Forty adult male albino Wistar rats were divided into: 1) control group (C, in which the rats were fed with a standard diet and received vehicle; 2) diabetic group (D, in which T2DM was induced by feeding the rats with HFD for four weeks followed by a single i.p. injection of 35 mg/kg STZ, this group was also allowed to have HFD till the end of the study; and 3) D+PYY3-36 group (in which the diabetic rats were treated with 50 µg/kg i.p. PYY3-36 twice a day for one week). Food intake, water intake, body weight (b.w.), visceral fat weight (VFW), liver glycogen content, serum levels of glucose, insulin, and interleukin-6 (IL-6), were measured. Homeostatic-model assessment of insulin resistance (HOMA-IR) was estimated. The gene expression of the hypothalamic neuropeptide Y (NPY) and visceral nuclear factor kappa B (NF-κB) were assessed by a reverse transcription polymerase chain reaction (RT-PCR). RESULTS: The PYY3-36 administration to the diabetic group of rats significantly increased the serum insulin levels and liver glycogen content, decreased the body weight, VFW, food intake, water intake, serum levels of the glucose, IL-6, and HOMA-IR. It also decreased the expression of both the hypothalamic NPY and the visceral fat NF-κB. CONCLUSION: With respect to the fact of improved insulin release and enhanced insulin sensitivity (an effect that may be mediated via suppressing accumulation of visceral fat and inflammatory markers), in the rats treated with PYY3-36, the PYY3-36 might be considered for the future as a promising therapeutic tool in T2DM.


Assuntos
Diabetes Mellitus Experimental/metabolismo , Resistência à Insulina , Fragmentos de Peptídeos/farmacologia , Peptídeo YY/farmacologia , Adiposidade/efeitos dos fármacos , Animais , Glicemia/efeitos dos fármacos , Glicemia/metabolismo , Peso Corporal/efeitos dos fármacos , Diabetes Mellitus Experimental/induzido quimicamente , Diabetes Mellitus Experimental/patologia , Ingestão de Líquidos/efeitos dos fármacos , Ingestão de Alimentos/efeitos dos fármacos , Resistência à Insulina/fisiologia , Gordura Intra-Abdominal/efeitos dos fármacos , Gordura Intra-Abdominal/metabolismo , Gordura Intra-Abdominal/patologia , Masculino , Tamanho do Órgão/efeitos dos fármacos , Ratos , Ratos Wistar , Receptores de Neuropeptídeo Y/agonistas , Estreptozocina
14.
J Anim Physiol Anim Nutr (Berl) ; 103(5): 1437-1446, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31334576

RESUMO

The objective of this study was to determine the impact of ginger and/or thyme aqueous extracts administration on the growth rate, caecum activity, reproductive performance and semen quality of rabbits. A total of 24 V-line male rabbits at the age of 12 weeks were divided randomly into four equal groups (6/each) until 24 weeks of age. Treatments were as follows: drinking fresh water and served as control (G1); drinking water supplemented with 100 mg/kg b. wt. of ginger aqueous extract (G2); drinking water supplemented with 50 mg/kg b. wt. of thyme aqueous extract (G3); drinking water supplemented with 100 mg/kg b. wt. of ginger aqueous extract plus 50 mg/kg b. wt. of thyme aqueous extract (G4). Administration of aqueous thyme extract with 50 mg/kg b. wt. improved (p < 0.001) feed intake and growth performance compared to control. The highest average daily gain (p < 0.001) was found for G3 rabbits followed by G4, G2 and G1 respectively. While the most efficient feed conversion ratio was found in G4. Group 3 and group 4 had significant (p < 0.05) positive effect on caecum pH, ammonia and TVFAs concentration. Data indicated that treated groups had hastened the age with heavier body weight, larger testicular size and higher testosterone level. Also, most semen characteristics (volume, progressive motility, sperm concentration and normal spermatozoa) were higher in treated groups compared with the control group. Furthermore, gathering of the spermatozoa in the lumen of the seminiferous tubules, expanded epithelial cells stature of the epididymis with stuffed lumens with sperms in treated groups. In conclusion, aqueous extracts of ginger and/or thyme can be used as a growth promoter for improving reproductive performance of V-line male rabbits.


Assuntos
Fertilidade/efeitos dos fármacos , Extratos Vegetais/farmacologia , Coelhos , Testículo/efeitos dos fármacos , Thymus (Planta) , Zingiber officinale , Ração Animal/análise , Fenômenos Fisiológicos da Nutrição Animal , Animais , Dieta/veterinária , Suplementos Nutricionais , Masculino , Compostos Fitoquímicos , Análise do Sêmen/veterinária
15.
J Anim Physiol Anim Nutr (Berl) ; 103(6): 1758-1767, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31441113

RESUMO

This study was conducted to evaluate the effect of Zingiber officinale and Thymus vulgaris aqueous extracts as a natural antioxidant on liver and kidney functions and antioxidant status of growing rabbits. A total of 24 V-line male rabbits, 3 months old, 1.465 ± 0.12 kg average body weight (BW) were used in a complete randomized design. The rabbits were weighed individually and assigned randomly to four groups (6 animals/each). The first group (G1) was taken fresh water and served as control, rabbits of the second group (G2) were taken 100 mg/kg BW in drinking water of the Z. officinale aqueous extract daily. The third group (G3) was taken 50 mg/kg BW in drinking water of the T. vulgaris aqueous extract daily and the fourth group (G4) was taken 100 mg/kg BW of the Z. officinale aqueous extract plus 50 mg/kg BW of the T. vulgaris aqueous extract in drinking water daily. The oral administration of ginger and/or thyme aqueous extracts increased (p < .001) serum protein profile compared with control group. Moreover, results of group 2 showed significant (p < .001) decrease in cholesterol, triglyceride and very low-density lipoprotein cholesterol compared with group 3 and 4. Serum urea, uric acid and creatinine levels were significantly (p < .001) decreased in treated groups compared with control group. Oral administration of ginger and/or thyme aqueous extracts to growing rabbits increased (p < .001) total antioxidant capacity and glutathione content and the activity of superoxide dismutase, catalase and glutathione-S-transferase compared with the control group. In conclusion, the current study showed that oral administration of ginger and thyme aqueous extracts to growing rabbits showed no adverse effects on liver and kidney function parameters, histological structures and improved antioxidant status.


Assuntos
Rim/efeitos dos fármacos , Fígado/efeitos dos fármacos , Coelhos , Thymus (Planta) , Zingiber officinale , Ração Animal/análise , Fenômenos Fisiológicos da Nutrição Animal , Animais , Antioxidantes/metabolismo , Dieta/veterinária , Rim/anatomia & histologia , Metabolismo dos Lipídeos/efeitos dos fármacos , Fígado/anatomia & histologia , Masculino , Estresse Oxidativo
16.
Chin J Traumatol ; 22(6): 316-322, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31761698

RESUMO

PURPOSE: Sepsis is a common acute life-threatening condition that emergency physicians routinely face. Diagnostic options within the Emergency Department (ED) are limited due to lack of infrastructure, consequently limiting the use of invasive hemodynamic monitoring or imaging tests. The mortality rate due to sepsis can be assessed via multiple scoring systems, for example, mortality in emergency department sepsis (MEDS) score and sepsis patient evaluation in the emergency department (SPEED) score, both of which quantify the variation of mortality rates according to clinical findings, laboratory data, or therapeutic interventions. This study aims to improve the management processes of sepsis patients by comparing SPEED score and MEDS score for predicting the 28-day mortality in cases of emergency sepsis. METHODS: The study is a cross-sectional, prospective study including 61 sepsis patients in ED in Suez Canal University Hospital, Egypt, from August 2017 to June 2018. Patients were selected by two steps: (1) suspected septic patients presenting with at least one of the following abnormal clinical findings: (a) body temperature higher than 38 °C or lower than 36 °C, (b) heart rate higher than 90 beats/min, (c) hyperventilation evidenced by respiratory rate higher than 20 breaths/min or PaCO2 lower than 32 mmHg, and (d) white blood cell count higher than 12,000/µL or lower than 4000/µL; (2) confirmed septic patients with at least a 2-point increase from the baseline total sequential organ failure assessment (SOFA) score following infection. Other inclusion criteria included adult patients with an age ≥18 years regardless of gender and those who had either systemic inflammatory response syndrome or suspected/confirmed infection. Patients were shortly follow-up for the 28-day mortality. Each patient was subject to SPEED score and MEDS score and then the results were compared to detect which of them was more effective in predicting outcome. The receiver operating characteristic curves were also done for MEDS and SPEED scores. RESULTS: Among the 61 patients, 41 died with the mortality rate of 67.2%. The mortality rate increased with a higher SPEED and MEDS scores. Both SPEED and MEDS scores revealed significant difference between the survivors and nonsurvivors (p = 0.004 and p < 0.001, respectively), indicating that both the two systems are effective in predicting the 28-day mortality of sepsis patients. Thereafter, the receiver operating characteristic curves were plotted, which showed that SPEED was better than the MEDS score when applied to the complete study population with an area under the curve being 0.87 (0.788-0.963) as compared with 0.75 (0.634-0.876) for MEDS. Logistic regression analysis revealed that the best fitting predictor of 28-day mortality for sepsis patients was the SPEED scoring system. For every one unit increase in SPEED score, the odds of 28-day mortality increased by 37%. CONCLUSION: SPEED score is more useful and accurate than MEDS score in predicting the 28-day mortality among sepsis patients. Therefore SPEED rather than MEDS should be more widely used in the ED for sepsis patients.


Assuntos
Serviço Hospitalar de Emergência/estatística & dados numéricos , Sepse/mortalidade , Estudos Transversais , Humanos , Modelos Logísticos , Estudos Prospectivos , Fatores de Tempo
17.
Cell Physiol Biochem ; 46(6): 2412-2420, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29794481

RESUMO

BACKGROUND/AIMS: Ultrasound-guided supraclavicular brachial plexus block (BPB) has come into wider use as a regional anesthetic during upper limb operations. This study assessed the neurological and hemodynamic changes and gene expression after co-administration of midazolam or neostigmine with bupivacaine during supraclavicular BPB. METHODS: The study involved 90 adults divided into three groups: control (bupivacaine), midazolam (bupivacaine plus midazolam), and neostigmine (bupivacaine plus neostigmine). Blood samples were taken and interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) mRNA levels were measured by real-time PCR, and oxidative stress markers were identified. In addition to the hemodynamic variables, the onset and duration of sensory and motor blockades, duration of analgesia, pain scores, time of first request for an analgesic, and amounts of analgesics ingested were evaluated. RESULTS: Compared with the control and neostigmine groups, the midazolam group experienced longer sensory and motor blockades, prolonged analgesia, lower pain scores at 12 h and 24 h, and lower need for postoperative analgesics. Moreover, the midazolam group exhibited lower oxidative stress markers with a higher fold change in IL-6 and TNF-α mRNA levels. CONCLUSION: Midazolam co-administered with bupivacaine provided better analgesic quality than did neostigmine with bupivacaine. This might be due to its superior antioxidant and anti-inflammatory effects.


Assuntos
Anestésicos Locais/administração & dosagem , Bloqueio do Plexo Braquial/métodos , Bupivacaína/administração & dosagem , Midazolam/administração & dosagem , Neostigmina/administração & dosagem , Adolescente , Adulto , Idoso , Anestésicos Locais/farmacologia , Pressão Sanguínea/efeitos dos fármacos , Bupivacaína/farmacologia , Método Duplo-Cego , Feminino , Expressão Gênica/efeitos dos fármacos , Frequência Cardíaca/efeitos dos fármacos , Humanos , Interleucina-6/sangue , Interleucina-6/genética , Interleucina-6/metabolismo , Masculino , Malondialdeído/sangue , Midazolam/farmacologia , Pessoa de Meia-Idade , Neostigmina/farmacologia , Superóxido Dismutase/sangue , Fator de Necrose Tumoral alfa/sangue , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/metabolismo , Ultrassonografia , Adulto Jovem
18.
Haematologica ; 103(12): 2008-2015, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30026338

RESUMO

YARS2 variants have previously been described in patients with myopathy, lactic acidosis and sideroblastic anemia 2 (MLASA2). YARS2 encodes the mitochondrial tyrosyl-tRNA synthetase, which is responsible for conjugating tyrosine to its cognate mt-tRNA for mitochondrial protein synthesis. Here we describe 14 individuals from 11 families presenting with sideroblastic anemia and YARS2 variants that we identified using a sideroblastic anemia gene panel or exome sequencing. The phenotype of these patients ranged from MLASA to isolated congenital sideroblastic anemia. As in previous cases, inter- and intra-familial phenotypic variability was observed, however, this report includes the first cases with isolated sideroblastic anemia and patients with biallelic YARS2 variants that have no clinically ascertainable phenotype. We identified ten novel YARS2 variants and three previously reported variants. In vitro amino-acylation assays of five novel missense variants showed that three had less effect on the catalytic activity of YARS2 than the most commonly reported variant, p.(Phe52Leu), associated with MLASA2, which may explain the milder phenotypes in patients with these variants. However, the other two missense variants had a more severe effect on YARS2 catalytic efficiency. Several patients carried the common YARS2 c.572 G>T, p.(Gly191Val) variant (minor allele frequency =0.1259) in trans with a rare deleterious YARS2 variant. We have previously shown that the p.(Gly191Val) variant reduces YARS2 catalytic activity. Consequently, we suggest that biallelic YARS2 variants, including severe loss-of-function alleles in trans of the common p.(Gly191Val) variant, should be considered as a cause of isolated congenital sideroblastic anemia, as well as the MLASA syndromic phenotype.


Assuntos
Acidose Láctica/genética , Anemia Sideroblástica/genética , Doenças Genéticas Ligadas ao Cromossomo X/genética , Mutação em Linhagem Germinativa , Síndrome MELAS/genética , Proteínas Mitocondriais/genética , Tirosina-tRNA Ligase/genética , Acidose Láctica/enzimologia , Adolescente , Anemia Sideroblástica/enzimologia , Feminino , Estudos de Associação Genética , Doenças Genéticas Ligadas ao Cromossomo X/enzimologia , Humanos , Lactente , Síndrome MELAS/enzimologia , Masculino , Pessoa de Meia-Idade , Mutação de Sentido Incorreto , Adulto Jovem
19.
Ultrastruct Pathol ; 41(1): 23-35, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-27982723

RESUMO

Liver cirrhosis is an elevating cause of morbidity and mortality worldwide. TNF-α/TNF-R1 signal is implicated in progression of many liver diseases. This study provides histological and ultrastructural view that clarifies the effect of etanercept, a TNF-α inhibitor, on development of thioacetamide (TAA)-induced liver cirrhosis and the accompanied hemosiderosis in rats, highlighting the implication and distribution pattern of hepatic TNF-R1. Sixty male albino rats (Rattus norvegicus) were equally randomized into three groups. Group I served as the control. Liver cirrhosis was triggered in the other two groups by intraperitoneal injection of TAA twice a week for five months. Group II received TAA only, while group III subcutaneously injected with etanercept one hour before TAA, along five months. At the end of the experiment, blood was collected for biochemical analysis and livers were excised for histological, immunohistochemical, and electron microscopical preparations. Rats treated with TAA only developed hepatic cirrhosis accompanied by massive deposition of hemosiderin; strong and widespread expression of hepatic TNF-R1 in sinusoidal endothelial cells (SECs), Kupffer cells (KCs), and many hepatocytes; and frequent appearance of fibrogenic, plasma, and mast cells, at the ultrastructural level. By contrast, administration of etanercept diminished the expression of TNF-R1, attenuated the accumulation of collagen and hemosiderin, and preserved the hepatic histoarchitecture. In conclusion, TNF-α signal via TNF-R1 may be implicated in the mechanism of fibrogenesis and the associated hemosiderosis. Etanercept may provide a promising therapeutic approach not only for attenuating the progression of fibrogenesis, but also for hepatic iron overload-associated disorders.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Etanercepte/farmacologia , Cirrose Hepática Experimental/prevenção & controle , Fígado/efeitos dos fármacos , Substâncias Protetoras/farmacologia , Tioacetamida , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Animais , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Doença Hepática Induzida por Substâncias e Drogas/patologia , Colágeno/metabolismo , Citoproteção , Hemossiderina/metabolismo , Hemossiderose/induzido quimicamente , Hemossiderose/prevenção & controle , Imuno-Histoquímica , Fígado/metabolismo , Fígado/ultraestrutura , Cirrose Hepática Experimental/induzido quimicamente , Cirrose Hepática Experimental/metabolismo , Cirrose Hepática Experimental/patologia , Masculino , Microscopia Eletrônica de Transmissão , Ratos , Receptores Tipo I de Fatores de Necrose Tumoral/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
20.
J Med Virol ; 88(5): 837-42, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26488214

RESUMO

Hepatitis delta virus (HDV) usually have an unfavorable clinical outcome in chronic hepatitis B virus (HBV) patients. In Egypt, data about epidemiology, the spectrum of disease, and impact of HDV on HBV infection are rare. To assess the prevalence, clinical and virological characteristics of HDV infection among Egyptian patients with chronic HBV. Adult patients with Hepatitis B surface antigen (HBsAg)-positive were evaluated for the presence of HDV using anti HDV-IgG and HDV RNA by RT-PCR. Routine laboratory investigations, genotypes and subtypes for both HBV and HDV, abdominal sonography, and transient elastography (TE) were done. Liver biopsy was performed only in whenever indicated. One hundred and twenty-one treatment-naïve chronic HBV patients were included. Wild HBV genotype-D2 was found in 98.2% and 81.9% were HBeAg negative. Prevalence of HDV was 8.3% by anti-HDV IgG and 9.9% by RT-PCR. Wild HDV genotype-IIb was reported in 83.3%. HDV infection was more common in males, 90.9% of delta patients were HBeAg negative. Compared to the mono-infected HBV, concomitant HBV/HDV infection was not associated with more derangment in ALT nor advanced stage of fibrosis. 66.7% of HDV patients had significantly lower HBV-DNA level compared to the non-delta patients (P < 0.001). HDV is not uncommon in Egypt. HBV genotype-D was associated with HDV genotype-IIb. Delta infection was associated with negative HBeAg status, reduction of HBV replication, but neither influenced the clinical course nor increased significant liver damage risk.


Assuntos
Coinfecção/virologia , Genótipo , Vírus da Hepatite B/isolamento & purificação , Hepatite B Crônica/virologia , Hepatite D Crônica/virologia , Vírus Delta da Hepatite/classificação , Vírus Delta da Hepatite/isolamento & purificação , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia , Coinfecção/epidemiologia , Estudos Transversais , Egito/epidemiologia , Feminino , Anticorpos Anti-Hepatite/sangue , Vírus da Hepatite B/classificação , Vírus da Hepatite B/genética , Hepatite B Crônica/complicações , Hepatite B Crônica/epidemiologia , Hepatite B Crônica/patologia , Hepatite D Crônica/complicações , Hepatite D Crônica/epidemiologia , Hepatite D Crônica/patologia , Vírus Delta da Hepatite/genética , Humanos , Imunoglobulina G/sangue , Fígado/diagnóstico por imagem , Fígado/patologia , Masculino , Pessoa de Meia-Idade , Prevalência , RNA Viral/isolamento & purificação , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Adulto Jovem
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