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1.
Curr Stem Cell Res Ther ; 19(5): 725-734, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37448361

RESUMEN

BACKGROUND: Bisphenol-A (BPA) has a well-proven deleterious effect on the hypothalamicpituitary- gonadal axis. OBJECTIVES: The current study investigated the therapeutic potentials of mesenchymal stem cells (MSCs) in a murine model of BPA-induced ovarian damage. METHODS: Fifty adult female rats were divided into: Group 1; control group, Group IIa, IIb: rats were given oral gavage of BPA (25 and 50 mg/Kg body weight respectively) on a daily basis for 15 days, and Group IIIa, IIIb; rats were intravenously treated with of MSCs (106 cells) after receiving the last dose of BPA as in group II. Plasma and ovarian tissue levels of Malondialdehyde (MDA) and gonadal axis hormones were assessed. Apoptosis was evaluated by TUNNEL assay and by apoptosis markers (FAS, FASL, Caspase 3, SLTM). A histological examination of ovarian tissue was also conducted. RESULTS: BPA resulted in a significant elevation in plasma levels of LH, FSH, and ovarian tissue levels of MDA and a significant decrease in estradiol and progesterone. All genetic and protein markers of apoptosis were elevated in BPA treated group with decreased oestrogen receptor expression in the ovarian tissue. Increased apoptotic cells were confirmed by TUNEL assay. A high dose of BPA was able to increase the number of atretic follicles in the ovarian tissue whereas the numbers of primordial, primary, secondary and Graafian follicles were decreased. All the laboratory and histological abnormalities were ameliorated by treatment with MSCs. CONCLUSION: The antioxidant and anti-apoptotic effects of MSCs could possibly explain the ability of this therapeutic modality to ameliorate BPA-induced-ovarian damage.


Asunto(s)
Compuestos de Bencidrilo , Células Madre Mesenquimatosas , Ovario , Ratas , Femenino , Ratones , Animales , Ovario/metabolismo , Ovario/patología , Folículo Ovárico/patología , Fenoles/metabolismo , Fenoles/farmacología
2.
Nat Commun ; 14(1): 8354, 2023 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-38102121

RESUMEN

The self-templating nature of prions plays a central role in prion pathogenesis and is associated with infectivity and transmissibility. Since propagation of proteopathic seeds has now been acknowledged a principal pathogenic process in many types of dementia, more insight into the molecular mechanism of prion replication is vital to delineate specific and common disease pathways. By employing highly discriminatory anti-PrP antibodies and conversion-tolerant PrP chimera, we here report that de novo PrP conversion and formation of fibril-like PrP aggregates are distinct in mechanistic and kinetic terms. De novo PrP conversion occurs within minutes after infection at two subcellular locations, while fibril-like PrP aggregates are formed exclusively at the plasma membrane, hours after infection. Phenotypically distinct pools of abnormal PrP at perinuclear sites and the plasma membrane show differences in N-terminal processing, aggregation state and fibril formation and are linked by exocytic transport via synaptic and large-dense core vesicles.


Asunto(s)
Enfermedades por Prión , Priones , Humanos , Proteínas Priónicas , Priones/metabolismo , Línea Celular , Membrana Celular/metabolismo , Fibras Musculares Esqueléticas/metabolismo , Enfermedades por Prión/metabolismo
3.
J Mol Model ; 29(9): 302, 2023 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-37653273

RESUMEN

CONTEXT: This study rigorously investigates three 3d transition metal carbide (TMC) structures via LDA and GGA approximations. It examines cohesive energy (Ecoh), Vickers hardness (Hv), mechanical stability, and electronic properties. Notably, most 3d TMCs exhibit higher cohesive energy than nitrides, and rs-TiC demonstrates a Vickers hardness of 25.66 GPa, outperforming its nitride counterpart. The study employs theoretical calculations to expedite research, revealing mechanical stability in CrC and MnC (GGA) and CrC (LDA in cc structure), while all 3d TMCs in rs and seven in zb structures show stability. Charge transfer and bonding analysis reveal enhanced covalency along the series, influenced by the interplay between p orbitals of carbon and d orbitals of the metal. Most 3d TMCs exhibit metallic properties, excluding zb-TiC and zb-FeC in all phases. An inverse correlation between elastic constant C44 and electronic states near the Fermi level (EF) emerges, guiding applications and design. This study efficiently uncovers 3d TMC properties, offering insights for applications and design. METHODS: We employed the Vienna ab initio Simulation software (VASP) to perform computations based on density functional theory (DFT). Our approach incorporated both the projector augmented wave (PAW) and PW91 general gradient approximation (GGA) methods within the local density approximation (LDA).

4.
Food Chem Toxicol ; 176: 113744, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36965644

RESUMEN

The terrible reality is that acrylamide (AA) is a common food contaminant found in a wide variety of commonly consumed foods. This research involves the advancement of a more dependable technique for the bio-fabrication of zinc oxide nanoparticles (ZNPs) through the green method using Moringa Oleifera extract (MO-ZNPs) as an efficient chelating agent for acrylamide (AA). The effects of AA on glutathione redox dynamics, liver function, lipid profile, and zinc residues in Sprague Dawley rats are investigated. Finally, the microarchitecture and immunohistochemical staining of Caspase-3 and CYP2E1 were determined in the liver tissue of rats. Four separate groups, including control, MO-ZNPs (10 mg/kg b. wt), AA (20 mg/kg b. wt), and AA + MO-ZNPs for 60 days. The results revealed a suppressed activity of glutathione redox enzymes (GSH, GPX,and GSR) on both molecular and biochemical levels. Also, AA caused elevated liver enzymes, hepatosomatic index, and immunohistochemical staining of caspase-3 and CYP2E1 expression. MO-ZNPs co-treatment, on the other hand, stabilized glutathione-related enzyme gene expression, normalized hepatocellular enzyme levels, and restored hepatic tissue microarchitectures. It could be assumed that MO-ZNPs is a promising hepatoprotective molecule for alleviating AA-induced hepatotoxicity. We witnessed changes in glutathione redox dynamics to be restorative. Glutathione and cytochrome P450 2E1 play crucial roles in AA detoxification, so maintaining a healthy glutathione redox cycle is necessary for disposing of AA toxicity.


Asunto(s)
Enfermedad Hepática Inducida por Sustancias y Drogas , Moringa oleifera , Óxido de Zinc , Ratas , Animales , Citocromo P-450 CYP2E1/metabolismo , Óxido de Zinc/farmacología , Moringa oleifera/química , Caspasa 3/metabolismo , Ratas Sprague-Dawley , Acrilamida/toxicidad , Glutatión/metabolismo , Antioxidantes/farmacología , Peroxidación de Lípido , Enfermedad Hepática Inducida por Sustancias y Drogas/tratamiento farmacológico , Enfermedad Hepática Inducida por Sustancias y Drogas/prevención & control , Estrés Oxidativo
5.
Cardiol Young ; 33(3): 354-361, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36259152

RESUMEN

We report our experience and early outcomes of using the BeGraft aortic stent in children, adolescents, and young adults. BeGraft aortic stent (Bentley InnoMed, Hechingen, Germany) requires a smaller long sheath compared to other covered stents, and it has a low profile and adequate radial power. With these features, it can overcome some limitations in the treatment of coarctation, especially in children. This is a single centre retrospective analysis of 11 implanted BeGraft aortic stents in coarctation of the aorta between July 2020 and November 2021. The eleven stents were successfully implanted in 11 patients (10 males). The median age of the patients was 13.7 years (interquartile range 12-16 years), and the median weight was 43 kg (interquartile range 35-62 kg). In five patients, after the stents were opened completely by the first balloon, they were exchanged with a Z-MED II™ balloon, 1-3 mm larger in diameter, and the stents were redilated. The median catheter-derived systolic peak-to-peak pressure gradient was 23 mm Hg (interquartile range 16-37 mmHg) before the procedure and 3 mm Hg (interquartile range 1-5 mm Hg) after the procedure. Except for the partial femoral artery thrombosis in two patients, no other procedural complications were observed in our study. The median follow-up duration was 5 months (interquartile range 2-12 months). During follow-up, only one patient (9%) had stent narrowing that required dilation. Our initial results and short-term follow-up showed that the BeGraft aortic stent implantation and redilation can be performed effectively, safely, and successfully in the treatment of coarctation of the aorta.


Asunto(s)
Coartación Aórtica , Masculino , Adolescente , Humanos , Niño , Adulto Joven , Coartación Aórtica/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Stents , Aorta/cirugía
6.
Cureus ; 15(12): e50189, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38186425

RESUMEN

Background and objective A healthy lifestyle encompasses healthy eating, regular exercise, getting enough sleep, and avoiding smoking, drug abuse, and alcohol, which will help improve mental health and manage the symptoms of anxiety, stress, and depression. In this study, we aimed to evaluate the relationship between a healthy lifestyle and psychological well-being among Saudi adolescent girls. Materials and methods A cross-sectional study was conducted among adolescent girls in secondary schools in Taif City, Saudi Arabia. The main outcome measures were the Simple Lifestyle Indicator Questionnaire (SLIQ), Patient Health Questionnaire-2 (PHQ-2) and PHQ-9 (if PHQ-2-positive), Generalized Anxiety Disorder 7-item (GAD-7) questionnaire, and Perceived Stress Scale (PSS) scores. Results The age of the respondents ranged between 15 and 19 years with an arithmetic mean of 16.72 and a standard deviation (SD) of 0.96 years. Most of the students (58.3%) followed a healthy lifestyle whereas only 6.7% followed an unhealthy one. The prevalence of depression was 52.5%; moderately severe depression was observed in 14.8% and severe depression was seen in 6.9% of the schoolgirls. Moderate or severe anxiety was observed in 24.3% and 17.8% of schoolgirls, respectively. High perceived stress was observed in 18% of the students. There was a statistically significant association between students' lifestyle and the severity of depression, anxiety, and perceived stress (p<0.001). Conclusion While unhealthy lifestyles are not common among secondary schoolgirls in Taif City, we found a significant association between such lifestyles among students and the deterioration of their psychological well-being.

7.
Artículo en Inglés | MEDLINE | ID: mdl-38357613

RESUMEN

Background: Dry eye disease (DED) is a multifactorial condition often characterized by a reduction in tear film quantity or quality. This study aimed to determine the frequency of DED and its associated subjective symptoms among students of Mu'tah University. Methods: In this cross-sectional study conducted at Mu'tah University, Mu'tah, Jordan, from January to April 2022, 489 students completed an online patient-reported DED symptom questionnaire and the ocular surface disease index (OSDI) questionnaire. Moreover, 106 participants underwent clinical examinations using the Schirmer test I and fluorescein tear breakup time (TBUT). Results: Approximately 74.6% of the students self-reported experiencing DED symptoms, and 72.6% had an OSDI score > 12, which is considered the threshold for an abnormal ocular surface. Clinical examinations revealed low Schirmer test scores ( < 10 mm) in 26.4% (n = 28) and 25.5% (n = 27) of the right and left eyes, respectively. We observed low TBUT scores ( < 5 s) in 19.8% (n = 21) and 18.9% (n = 20) of the right and left eyes, respectively. We noted significant differences between the self-reported DED symptoms and the Schirmer test scores (P = 0.003 for both right and left eyes), TBUT (P < 0.001 for both right and left eyes), and OSDI score (P < 0.001 for each self-reported DED symptom). We observed a weak significant positive correlation between Schirmer test scores and TBUT in the right (r = + 0.30; P = 0.002) and left (r = + 0.34; P < 0.001) eyes; a negligible significant inverse correlation between OSDI scores and Schirmer test scores in the right (r = - 0.24; P = 0.013) and left (r = - 0.23; P = 0.019) eyes; and a negligible significant inverse correlation between the OSDI score and TBUT of the left eye (r = - 0.25; P = 0.011) but not of the right eye (r = - 0.17; P = 0.077). Conclusions: The frequency of DED symptoms in this study was higher than that previously reported based on foreign statistics. The presence of self-reported DED symptoms was significantly associated with higher OSDI scores. Self-reported DED symptoms were more frequent than the abnormalities detected using objective methods. Therefore, a combination of subjective and objective measures may provide higher diagnostic yield for DED. Further studies are required to confirm this hypothesis.

8.
J Family Med Prim Care ; 11(7): 3961-3966, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-36387694

RESUMEN

Aim: Trichotillomania (TTM) (hair-pulling disorder) is a relatively rare psychiatric condition. We are aware of no studies of this disorder in Arab Middle Eastern populations. We examine the prevalence and correlates of TTM in a community sample of individuals living in a large port city in western Saudi Arabia. Methods: An observational cross-sectional study of 511 adults aged 18 years or over living in Jeddah, Saudi Arabia, was conducted. After inquiring about demographic information and self-reported psychiatric disorders, the Massachusetts General Hospital Hair-Pulling Scale (MGH-HPS) was administered to assess symptoms of TMM. Results: A total of 9 of 511 participants (1.8%) scored above the cutoff for suspected TTM on the MGH-HPS, whereas 203 (39.7%) had a history of hair-pulling. Those with suspected TTM were more likely to be female (2.8% vs 0.4% in males, P = 0.047) and somewhat more likely to have a history of obsessive-compulsive disorder (OCD) (6.7% vs 1.5%, P = 0.093). Hair pulling was also more common in unmarried, not living with family, and unemployed. Among those with a history of hair-pulling, the most frequent locations were from the face (62.7%), head (55.7%), and legs (15.3%). Conclusions: While a history of hair-pulling is common in this community sample (40%), suspected TTM is much less prevalent (<2%), although not rare by any means. When present, the condition is more common in women and possibly in those with OCD.

9.
Cureus ; 14(11): e32037, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36600813

RESUMEN

AIM: This study compares the stage at the presentation of patients with colorectal cancer (CRC) before and after introducing COVID-19 restrictions and the mode of presentation. METHODS: This is a retrospective cohort study comparing the incidence of CRC, TNM stage and mode of presentation in the pre-COVID and COVID cohorts at a single UK Trust. All patients discussed at the CRC multidisciplinary team (MDT) from March 2017 to March 2021 were included and split into two cohorts; the pre-COVID group from 01/03/2017 to 29/02/2020 and the COVID group from 01/03/2020 to 28/02/2021. Percentages were used for descriptive statistics. Student's t-test was used for the comparison of demographic variables. Chi-squared test was used for the difference analysis for the categorical data, such as TNM and mode of presentation. P value ≤0.05 was significant. RESULTS: In total, 1373 patients were diagnosed with CRC during the period from March 2017 to March 2021. The pre-COVID group (2017-2020) included 1104 CRC patients, compared to 269 patients in the COVID one (2020-2021). The mean age was higher in the pre-COVID group (p = 0.001). There was a statistically significant increase in the proportion of cases presenting with T4 disease (p = 0.023) and metastatic disease (p = 0.032) in the COVID group compared to the pre-COVID group. There was also a significant increase in the rate of emergency presentations (p < 0.0001). CONCLUSION: We observed a statistically significant increase in rates of locally advanced (T4) and metastatic (distant) CRC in patients presenting after introducing the COVID-19 lockdown. There was also an increase in emergency presentations. There was no observed difference in nodal status. This may reflect disruption to cancer diagnostic services and the reluctance of patients to access medical care during a pandemic, particularly the elderly.

10.
Cureus ; 14(11): e32018, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36600842

RESUMEN

This meta-analysis aims to evaluate the comparative outcomes of drain insertion versus no drain after appendicectomy for complicated appendicitis. A systematic search of PubMed, Cochrane Library and Scopus was conducted, and all studies comparing drain versus no drain after appendicectomy for complicated appendicitis were included. Abdominal collection, surgical site infection (SSI), bowel obstruction, faecal fistula, paralytic ileus, length of hospital stay (LOS) and mortality were the evaluated outcome parameters for the meta-analysis. Seventeen studies reporting a total number of 4,255 patients who underwent appendicectomy for complicated appendicitis with (n=1,580) or without (n=2,657) drain were included. There was no significant difference between the two groups regarding abdominal collection (odds ratio (OR)=1.41, P=0.13). No-drain group was superior to the drain group regarding SSI (OR=1.93, P=0.0001), faecal fistula (OR=4.76, P=0.03), intestinal obstruction (OR=2.40, P=0.04) and paralytic ileus (OR=2.07, P=0.01). There was a difference regarding mortality rate between the two groups (3.4% in the drain group vs 0.5% in the no-drain group, risk difference (RD)=0.01, 95% CI (-0.01, 0.04), P=0.36). In conclusion, this meta-analysis has shown that drains have no effect on the development of intra-abdominal collections in complicated appendicitis, but it can significantly increase the risk of postoperative complications such as fistula, surgical site infection (SSI), bowel obstruction, ileus and length of hospital stay.

11.
J Family Med Prim Care ; 9(8): 4401-4405, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33110868

RESUMEN

BACKGROUND: Obstructive sleep apnea (OSA) is a common sleep disorder associated with significant morbidities and mortality if untreated. Continuous positive airway pressure is the gold standard treatment for OSA, but poor adherence significantly limits its use. However, there is evidence to support the effectiveness of surgical treatments for OSA. OBJECTIVES: This study aimed to assess the experience of sleep physicians in Saudi Arabia in treating OSA using surgical options. MATERIALS AND METHODS: This cross-sectional study featured an electronic survey that was sent to all sleep physicians across the Kingdom of Saudi Arabia between January 2018 and March 2018. The questionnaire contained questions on the demographics of the physicians and the types of surgical referral for patients with OSA. RESULTS: Twenty-six physicians completed the questionnaire. More than two-thirds of the physicians preferred to refer their patients to otolaryngologists (69.23%), while the remainder preferred to refer their patients to oral and maxillofacial surgeons (23.07%). More than half of the physicians indicated that maxillomandibular advancement (MMA) was the most effective surgical procedure (53.8%), followed by adenotonsillectomy (19.2%), then uvulopalatopharyngoplasty (UPPP) (11.5%). Four physicians (15.4%) chose "none" as the best answer. More participants indicated that the benefits outweighed the risks for MMA (53.84%) than for UPPP (19.23%). CONCLUSION: Based on the opinions of sleep physicians in Saudi Arabia, MMA is the best surgical option for the treatment of moderate to severe OSA. Otolaryngologists are the preferred surgeons because they are more available than oral and maxillofacial surgeons physicians, who are scarce in Saudi Arabia.

12.
Microb Drug Resist ; 25(5): 731-738, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30676863

RESUMEN

Asymptomatic bacteriuria (ASB) has been consistently observed in pregnancy. However, there is a paucity of data on the prevalence and characteristics of extended-spectrum ß-lactamase (ESBL)-producing Enterobacteriaceae in ASB in pregnant women. Therefore, we sought to investigate ESBL-producing and multidrug-resistant Enterobacteriaceae in antenatal women with ASB. Urine samples were collected from 310 asymptomatic pregnant women attending primary antenatal clinics and screened for significant bacteriuria. Isolates of Enterobacteriaceae were phenotypically tested for their ESBL production. ESBL genes (CTX-M, TEM, and SHV genes) were then amplified by polymerase chain reaction (PCR). Multiplex PCRs were used to perform phylogenetic typing of ESBL-producing Escherichia coli isolates and to examine the commonality of sequence type 131 (ST131)-O25b and ST131-O16. A total of 103 (33.2%) pregnant women were positive for significant bacteriuria (80 Enterobacteriaceae). Of these isolates, 32.5% (n = 26) were ESBL producers and had a higher rate of multidrug resistance than non-ESBL producers. Genotypic characterization of ESBL-producing isolates showed that 84.6% had the blaCTX-M gene (blaCTX-M-15 = 77.3%; blaCTX-M-9 = 18.2%). None of the isolates were of the TEM or SHV type. Half of the ESBL-producing E. coli isolates were of the phylogroup B2, and 4 (20%) isolates were of the ST131-O16 clonal subgroup. This study is the first in Egypt to provide evidence for the high prevalence of ESBL-producing Enterobacteriaceae in pregnant women with ASB. It also represents an important step toward genotypic characterization of this resistant form of bacteria, which may be useful for future antimicrobial studies.


Asunto(s)
Bacteriuria/epidemiología , Enterobacter/genética , Infecciones por Enterobacteriaceae/epidemiología , Infecciones por Escherichia coli/epidemiología , Escherichia coli/genética , Infecciones por Klebsiella/epidemiología , Klebsiella pneumoniae/genética , Adolescente , Adulto , Antibacterianos/farmacología , Enfermedades Asintomáticas , Bacteriuria/microbiología , Bacteriuria/transmisión , Farmacorresistencia Bacteriana Múltiple/genética , Egipto/epidemiología , Enterobacter/clasificación , Enterobacter/efectos de los fármacos , Enterobacter/aislamiento & purificación , Infecciones por Enterobacteriaceae/microbiología , Infecciones por Enterobacteriaceae/transmisión , Escherichia coli/clasificación , Escherichia coli/efectos de los fármacos , Escherichia coli/aislamiento & purificación , Infecciones por Escherichia coli/microbiología , Infecciones por Escherichia coli/transmisión , Femenino , Expresión Génica , Genotipo , Humanos , Infecciones por Klebsiella/microbiología , Infecciones por Klebsiella/transmisión , Klebsiella pneumoniae/clasificación , Klebsiella pneumoniae/efectos de los fármacos , Klebsiella pneumoniae/aislamiento & purificación , Fenotipo , Embarazo , Prevalencia , beta-Lactamasas
13.
Cardiol Young ; 28(11): 1375-1377, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30070198

RESUMEN

Steroids are used in the treatment of acute rheumatic fever with moderate-to-severe carditis. Corticosteroids have several cardiovascular side affects that are more common in adults than in children. Corticosteroid-related bradycardia is a rarely seen side effect. Children with bradycardia following oral corticosteroid use are rarely reported previously. We present a child who developed bradycardia after oral corticosteroid treatment and concurrent Wolff-Parkinson-White pattern.


Asunto(s)
Bradicardia/inducido químicamente , Prednisolona/efectos adversos , Fiebre Reumática/tratamiento farmacológico , Síndrome de Wolff-Parkinson-White/etiología , Administración Oral , Bradicardia/complicaciones , Niño , Ecocardiografía , Electrocardiografía Ambulatoria , Femenino , Estudios de Seguimiento , Glucocorticoides/administración & dosificación , Glucocorticoides/efectos adversos , Humanos , Prednisolona/administración & dosificación , Fiebre Reumática/complicaciones , Factores de Tiempo , Síndrome de Wolff-Parkinson-White/diagnóstico , Síndrome de Wolff-Parkinson-White/fisiopatología
14.
Saudi J Biol Sci ; 25(4): 710-714, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29740234

RESUMEN

Spexin (SPX) is a novel biomarker abundantly expressed in several animal and human tissues implicated in food intake and glucose control, respectively. As new roles for SPX are emerging, the present study explored for the first time, the associations of SPX to several cardiometabolic indices and inflammatory markers in pregnant women, a demographic not yet investigated with respect to SPX. A total of 117 Saudi women subdivided to those with gestational diabetes mellitus (GDM) (N = 63) and those without (N = 54) were included in this cross-sectional study. Anthropometry, glycemic, lipid, vitamin D, adipocytokines and inflammatory markers were measured consecutively at baseline and after the 2nd and 3rd trimesters. Age- and BMI adjusted comparisons revealed that levels of SPX were not significantly different in pregnant women with and without GDM. In all subjects, circulating levels of SPX showed modest associations with glucose (R = 0.18; p = .08) and HOMA ß (R = -0.19; p = .09) as well as significant positive associations with total cholesterol (R = 0.25; p = .02), LDL-cholesterol (R = 0.25; p = .02), 25(OH)D (R = 0.22; p = .04), albumin (R = 0.30; p < .01) and IL1ß (R = 0.41; p < .01). Stepwise regression analysis also suggested that IL1ß, leptin and albumin were the significant predictors of SPX. In summary, SPX levels modestly affect glucose and insulin sensitivity in pregnant women but is not associated with GDM and obesity. The significant association of SPX to ILß warrants further investigation as to the role of SPX in immune modulation.

15.
Cardiol Young ; 28(1): 1-8, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-28803588

RESUMEN

Paediatric cardiology is arguably the sub-specialty in which the greatest advances have been made in both disease diagnosis and treatment over the past half a century. Paediatric cardiology emerged as a discipline in the 1930s. Since then, advances in imaging techniques such as echocardiography, angiography, CT, or magnetic resonance and extracorporeal circulation have provided excellent diagnosis and treatment of CHD. The pioneers of paediatric cardiology are more than eponyms, for each used in new and original ways the tools and concepts available in his or her era. This brief overview of the history of paediatric cardiology on stamps begins from William Harvey up to our own time, and includes the milestones in paediatric cardiology.


Asunto(s)
Cardiología/historia , Personajes , Filatelia , Técnicas de Imagen Cardíaca/historia , Niño , Cardiopatías Congénitas/diagnóstico por imagen , Cardiopatías Congénitas/terapia , Historia del Siglo XVII , Historia del Siglo XVIII , Historia del Siglo XIX , Historia del Siglo XX , Humanos
16.
Exp Clin Transplant ; 16(5): 592-595, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-27364480

RESUMEN

OBJECTIVES: We aimed to investigate the frequency of hypomagnesemia and urinary magnesium excretion in pediatric heart transplant recipients. MATERIALS AND METHODS: In this study, 22 pediatric patients who underwent heart transplanted at a single center between March 2014 and April 2015 and who were treated with oral tacrolimus were analyzed prospectively. Serum magnesium, creatinine, and tacrolimus levels and total amount of urinary magnesium excretion were measured. Serum tacrolimus levels were measured 12 hours after the last dose of tacrolimus. RESULTS: Our patient group included 11 boys (50%) and 11 girls (50%) with a mean age of 16.72 ± 4.78 years. Serum tacrolimus levels were in the therapeutic range, with a mean of 1.48 ± 0.13 ng/mL (range, 1.2-1.69 ng /mL), mean fractional magnesium excretion was 8.59 ± 5.9% (range, 3%-22%), and 24-hour urinary magnesium excretion was 90.2 ± 62.95 mg/d. Hypermagnesuria was assessed in 80% of patients. We found 24-hour urinary magnesium excretion to be higher than normal in 27% of patients. There was no association between serum tacrolimus levels and serum magnesium levels or urinary magnesium excretion. CONCLUSIONS: Serum magnesium levels should be periodically measured in pediatric heart transplant patients treated with tacrolimus.


Asunto(s)
Inhibidores de la Calcineurina/efectos adversos , Trasplante de Corazón , Inmunosupresores/efectos adversos , Deficiencia de Magnesio/inducido químicamente , Magnesio/sangre , Tacrolimus/efectos adversos , Adolescente , Biomarcadores/sangre , Biomarcadores/orina , Niño , Preescolar , Femenino , Humanos , Magnesio/orina , Deficiencia de Magnesio/sangre , Deficiencia de Magnesio/diagnóstico , Deficiencia de Magnesio/orina , Masculino , Eliminación Renal , Factores de Riesgo , Resultado del Tratamiento , Adulto Joven
17.
J Infect Dev Ctries ; 12(7): 520-525, 2018 Jul 31.
Artículo en Inglés | MEDLINE | ID: mdl-31954000

RESUMEN

INTRODUCTION: Surgical wound infection is a serious problem, especially with metallo-beta lactamases (MBLs)- producing gram-negative bacteria as Pseudomonas aeruginosa. The main objective of this work was to evaluate for the first time in Minia- Upper Egypt, the incidence of imipenem-resistant Pseudomonas aeruginosa infection of surgical wounds particularly that mediated by MBL production. METHODOLOGY: P. aeruginosa was isolated from infected wounds by swabs and underwent full microbiological identification and Antibiotic Susceptibility testing. MBL production was tested by E-test and PCR was used for imipenemase (blaIMP) and Verona integron-encoded metallo-beta-lactamase (blaVIM) gene detection. RESULTS: Out of 200 pus samples collected from surgical site infections, P. aeruginosa had the prevalence rate of 35%. Imipenem resistance was found in 28.57% of the isolated Pseudomonas aeruginosa. The prevalence of MBL-producing isolates among Imipenem-resistant P. aeruginosa (IRPA) was 85 % by phenotypic method with 29% of them harboring blaVIM gene. High resistance rates to other classes of antibiotics were reported among the isolates with multi-drug resistance (MDR) detected in 97.3% of the isolates. CONCLUSION: To our knowledge, this is the first report in Minia, Upper Egypt describing the relatively high incidence of IRPA in infected surgical wounds with MBLs involved in the majority of isolates.

18.
Echocardiography ; 35(3): 380-387, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29239028

RESUMEN

AIM: To investigate myocardial deformation and function during treatment for Kawasaki disease (KD) in children. METHODS: We performed speckle tracking echocardiography (STE) and tissue Doppler imaging (TDI) in 15 children with KD and 15 healthy children during treatment for KD. STE was performed for longitudinal and circumferential strain (S) and strain rate (SR) at the left ventricle (LV) and for longitudinal S and SR at the right ventricle (RV). TDI was performed at the base of interventricular septum (IVS), LV, and RV. RESULTS: Among TDI parameters, Em and ejection time (ET) at IVS, ET at LV and ET at RV obtained obtained before treatment were significantly lower in patients with KD compared to controls. After treatment, in spite of improvements, ET at IVS and ET at RV remained significantly lower in patients with KD compared to controls. Left ventricular global longitudinal and circumferential S and SR values obtained before treatment were significantly lower in patients with KD compared to controls. Left ventricular S and SR values were found to be increased after treatment. However, left ventricular global circumferential S value remained significantly lower in patients with KD compared to controls. There were no significant differences in right ventricular global longitudinal S and SR values between patients and controls before treatment. CONCLUSION: During acute phase, patients with KD have reduced global left ventricular S and SR which may be more sensitive indicators of myocardial inflammation. This study showed gradual improvements in left ventricular myocardial function during treatment for KD.


Asunto(s)
Ecocardiografía/métodos , Ventrículos Cardíacos/diagnóstico por imagen , Ventrículos Cardíacos/fisiopatología , Síndrome Mucocutáneo Linfonodular/complicaciones , Síndrome Mucocutáneo Linfonodular/fisiopatología , Preescolar , Ecocardiografía Doppler/métodos , Femenino , Humanos , Masculino , Síndrome Mucocutáneo Linfonodular/terapia , Resultado del Tratamiento
19.
Cardiol Young ; 26(6): 1060-5, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26365613

RESUMEN

UNLABELLED: Aim The purpose of our study was to evaluate the association between insulin resistance and left ventricular size and function in obese children. Material and methods A total of 79 cases aged 10-16 years and diagnosed with obesity and 79 healthy and non-obese cases as controls were included in the study. Patient and control groups were divided into three groups in terms of age as group 1 (10-12 years), group 2 (12-14 years), and group 3 (14-16 years). Fasting blood glucose, lipid profile, and fasting insulin levels of the cases were assessed. Mitral valve E and A waves, left ventricular ejection fraction, fractional shortening, end-diastolic and end-systolic diameters, left atrium diameter, and septal wall thickness were measured using echocardiography. RESULTS: Measurements of septal diastolic thicknesses, left atrium diameter, and left ventricular end-systolic diameter of all the three groups obtained by echocardiography were statistically higher compared with the controls. In all the patient groups, the mitral valve E/A ratio was >1. In groups 2 and 3, there was a positive correlation between fasting insulin levels and HOMA-IR and left ventricular end-systolic diameter, end-diastolic diameter, and septal systolic and diastolic wall thicknesses. CONCLUSION: In paediatric obesity, identification of early cardiac changes will be significant in allowing early diagnosis and treatment of cardiovascular diseases.


Asunto(s)
Atrios Cardíacos/diagnóstico por imagen , Ventrículos Cardíacos/diagnóstico por imagen , Resistencia a la Insulina , Obesidad Infantil/diagnóstico por imagen , Función Ventricular Izquierda , Adolescente , Estudios de Casos y Controles , Niño , Ecocardiografía , Femenino , Humanos , Masculino , Turquía
20.
Rev Neurol (Paris) ; 170(8-9): 531-5, 2014.
Artículo en Francés | MEDLINE | ID: mdl-25174885

RESUMEN

INTRODUCTION: Multiple sclerosis (MS) is not uncommon in children. The aim of this study was to compare early onset MS (EOMS) with adult onset MS (AOMS). METHODS: A retrospective study including MS cases between 1997 and 2010. EOMS was defined by age at MS onset<18years. Data were collected using the EDMUS database (European Database of Multiple Sclerosis) including: sex, age at onset, disease duration, EDSS, score after relapse. The MSSS and the Progression Index were calculated. Patients with disease duration less than one year were excluded. MS symptoms at onset and at further relapses were also noted. These parameters were compared between the EOMS and the AOMS groups. RESULTS: Two hundred fifty-nine cases were included including 31 EOMS (11.96%). The mean follow-up was 96months. The relapsing-remittent form was significantly more frequent in the pediatric group (94% vs 79%). Mean EDSS and MSSS scores and the percentage of fast progressors (MSSS>5) were lower in the EOMS group. Analysis of neurological symptoms at the first MS attack and further neurological events showed a lower frequency of gait disturbances, motor symptoms and bladder symptoms in the EOMS group compared with the AOMS group. The 10-year mean EDSS score was 1.9 for EOMS and 4.1 for AOMS, after 25years it was 4.5, and 7.27 respectively. CONCLUSION: This study highlights the relative frequency of EOMS in our MS population. However, different severity scores showed less disability progression in EOMS patients compared with AOMS patient; irreversible disability was reached at an early age.


Asunto(s)
Esclerosis Múltiple/diagnóstico , Adolescente , Adulto , Edad de Inicio , Niño , Preescolar , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Estudios Retrospectivos , Adulto Joven
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