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1.
Mol Genet Genomics ; 299(1): 56, 2024 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-38787424

RESUMO

Breast cancer (BC) is a heterogenous disease with multiple pathways implicated in its development, progression, and drug resistance. Autophagy, a cellular process responsible for self-digestion of damaged organelles, had been recognized as eminent player in cancer progression and chemotherapeutic resistance. The haploinsufficiency of Beclin 1 (BECN1), autophagy protein, is believed to contribute to cancer pathogenesis and progression. In our study, we investigated the expression of BECN1 in a BC female Egyptian patient cohort, as well as its prognostic role through evaluating its association with disease free survival (DFS) after 2 years follow up and association of tumor clinicopathological features. Twenty frozen female BC tissue samples and 17 adjacent normal tissue were included and examined for the expression levels of BECN1. Although the tumor tissues showed lower expression 0.73 (0-8.95) than their corresponding normal tissues 1.02 (0.04-19.59), it was not statistically significant, p: 0.463. BECN1 expression was not associated with stage, nodal metastasis or tumor size, p:0.435, 0.541, 0.296, respectively. However, statistically significant negative correlation was found between grade and BECN1 mRNA expression in the studied cases, p:0.028. BECN1 expression had no statistically significant association with DFS, P = 0.944. However, we observed that triple negative (TNBC) cases had significantly lower DFS rate than luminal BC patients, p: 0.022, with mean DFS 19.0 months, while luminal BC patients had mean DFS of 23.41 months. Our study highlights the potential role of BECN1 in BC pathogenesis, showing that BECN1 expression correlates with poorer differentiation of BC, indicating its probable link with disease aggressiveness. DFS two years follow up showed that TNBC subtype remains associated with less favorable prognosis.


Assuntos
Proteína Beclina-1 , Neoplasias da Mama , Gradação de Tumores , RNA Mensageiro , Humanos , Feminino , Proteína Beclina-1/genética , Proteína Beclina-1/metabolismo , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Pessoa de Meia-Idade , Adulto , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Prognóstico , Regulação Neoplásica da Expressão Gênica , Intervalo Livre de Doença , Biomarcadores Tumorais/genética , Idoso , Egito
2.
Pharmaceutics ; 14(12)2022 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-36559263

RESUMO

Ovarian damage and fertility impairment are major side effects of chemotherapy in pre-menopausal cancer patients. Cisplatin is a widely used chemotherapeutic drug. The present study was designed to assess the ameliorative effects of melatonin as an adjuvant for fertility preservation. Thirty-two adult female Wistar rats were divided randomly into four equal groups: Control, Melatonin, Cisplatin (CP) treated, and CP + Melatonin treated. The cisplatin-treated group showed decreased body and ovarian weights, decreased serum E2 and AMH, increased serum LH and FSH, reduced ovarian levels of SOD, CAT, GSH, and TAC, and increased ovarian MDA. The histopathological examination of the cisplatin-treated group showed deleterious changes within ovarian tissue in the form of damaged follicles and corpus luteum, hemorrhage, and inflammatory infiltrates with faint PAS reaction in zona pellucida, increased ovarian collagen deposition, and marked expression of caspase-3 immune reaction in granulosa and theca cells, stroma, and oocytes. Alongside, there was a significant downregulation in the mRNA expression of steroidogenic enzymes, IL10, AMPK, PI3K, AKT, mTOR, and PTEN, while TGF-ß1, IL1ß, IL6, TNF-α, NF-Kß, P53, p38-MAPK, JNK, and FOXO3 mRNA expressions were upregulated in cisplatin-treated rats' ovarian tissue. Coadministration of cisplatin-treated rats with melatonin reversed these changes significantly. In conclusion, melatonin's antioxidant, anti-inflammatory, and anti-apoptotic activities could modulate ovarian disturbances induced by cisplatin and preserve fertility.

3.
Ther Adv Drug Saf ; 13: 20420986221080795, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36052397

RESUMO

Background: There has been a rising prevalence of polypharmacy among people living with HIV (PLWH). Uncertainty however remains regarding the exact estimates of polypharmacy among these cohorts of patients. Methods: We conducted a systematic search of PubMed; EMBASE, CROI, Cochrane Database of Systematic Reviews; Science Citation Index and Database of Abstracts of Reviews of Effects for studies between 1 January 2000 and 30 June 2021 that reported on the prevalence of polypharmacy (ingestion of > 5 non-ART medications) among PLWH on antiretroviral therapy regimen (ART). Prevalence of polypharmacy among HIV-positive patients on ART with Clopper-Pearson 95% confidence intervals were presented. The heterogeneity between studies was evaluated using I 2 and τ 2 statistics. Results: One hundred ninety-seven studies were initially identified, 23 met the inclusion criteria enrolling 55,988 PLWH, of which 76.7% [95% confidence interval (CI): 76.4-77.1] were male. The overall pooled prevalence of polypharmacy among PLWH was 33% (95% CI: 25-42%) (I 2 = 100%, τ2 = 0.9170, p < 0.0001). Prevalence of polypharmacy is higher in the Americas (44%, 95% CI: 27-63%) (I 2 = 100%, τ2 = 1.0886, p < 0.01) than Europe (29%, 95% CI: 20-40%) (I 2 = 100%, τ2 = 0.7944, p < 0.01). Conclusion: The pooled prevalence estimates from this synthesis established that polypharmacy is a significant and rising problem among PLWH. The exact interventions that are likely to significantly mitigate its effect remain uncertain and will need exploration by future prospective and systematic studies. Registration: PROSPERO: CRD42020170071. Plain Language Summary: Background: In people living with HIV (PLWH), what is the prevalence of polypharmacy and is this influenced by sociodemographic factors?Methods and Results: In this systematic review and meta-analysis of 23 studies comprising 55,988 participants, we have for the first time found an estimated polypharmacy pooled prevalence of 33% among PLWH. There was a relatively higher pooled prevalence of polypharmacy among the America's compared with European cohorts of PLWH.Conclusion: Polypharmacy among PLWH is a rising morbidity that needs urgent intervention both at policy and patient levels of care.

4.
Acta Biomed ; 90(3): 345-359, 2019 09 06.
Artigo em Inglês | MEDLINE | ID: mdl-31580327

RESUMO

Central precocious puberty (CPP) is defined as an early pubertal development that occurs before the age of 9 years in boys and 8 years in girls. It results from premature activation of the hypothalamic-pituitary-gonadal axis. Gonadotropin-releasing hormone agonists (GnRHa) have been the gold standard therapy for CPP for more than 30 years. These compounds have a high affinity for the pituitary LHRH receptor and are resistant to enzymatic degradation. Through continuous stimulation, GnRHa inhibit the pulsatile secretion of gonadotropin, resulting in hormonal suppression, cessation of pubertal development, and normalization of growth and skeletal maturation rates. The goal of therapy is to halt pubertal progression and delay epiphyseal maturation that leads to improvement of final adult height. There are no widely accepted guidelines for how long to continue treatment with a GnRHa for CPP, and individual practice varies widely. Furthermore, conflicting results have been published on the long-term effects of GnRHa therapy in patients with CPP. Therefore, we reviewed the current literature focusing our attention on the long-term effects and the significant adverse drug reactions (ADRs) observed during treatment with GnRHa in patients with CPP. Our review may provide the necessary data to enable clinicians to administer GnRHa in the safest and most appropriate way. Further studies are necessary to identify the mechanisms of development of potential adverse drug reactions related to GnRHa therapy in CPP.


Assuntos
Hormônio Liberador de Gonadotropina/análogos & derivados , Puberdade Precoce/tratamento farmacológico , Estatura/efeitos dos fármacos , Peso Corporal/efeitos dos fármacos , Densidade Óssea/efeitos dos fármacos , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/etiologia , Feminino , Hormônio Liberador de Gonadotropina/efeitos adversos , Hormônio Liberador de Gonadotropina/farmacologia , Humanos , Síndrome do Ovário Policístico/epidemiologia , Puberdade Precoce/metabolismo
5.
Acta Biomed ; 90(1): 134-148, 2019 01 23.
Artigo em Inglês | MEDLINE | ID: mdl-30889168

RESUMO

Juvenile fibromyalgia syndrome (JFMS) is a chronic condition characterized by symptoms of chronic diffuse musculoskeletal pain and multiple painful tender points on palpation. It is often accompanied by fatigue, disorders of sleep, chronic headaches, irritable bowel syndrome, and subjective soft tissue swelling. The complexity of the presenting clinical picture in JPFS has not been sufficiently defined in the literature. Similarities to adult fibromyalgia syndrome in JFMS are often difficult to compare, because many of the symptoms are "medically unexplained" and often overlap frequently with other medical conditions. However, a valid diagnosis of JFMS often decreases parents' anxiety, reduces unnecessary further investigations, and provides a rational framework for a management plan. The diagnostic criteria proposed by Yunus and Masi in 1985 to define JFMS were never validated or critically analyzed. In most cases, the clinical diagnosis is based on the history, the physical examination that demonstrates general tenderness (muscle, joints, tendons), the absence of other pathological conditions that could explain pain and fatigue, and the normal basic laboratory tests. Research and clinical observations defined that JFMS may have a chronic course that impacts the functional status and the psychosocial development of children and adolescents. This paper briefly reviews the existing knowledge on JFMS focusing on the diagnosis, clinical and the epidemiological characteristics in children and adolescents for better understanding of this disorder.


Assuntos
Fibromialgia/diagnóstico , Adolescente , Criança , Diagnóstico Diferencial , Feminino , Fibromialgia/epidemiologia , Fibromialgia/etiologia , Fibromialgia/terapia , Humanos , Masculino , Prognóstico
6.
Acta Biomed ; 89(4): 481-489, 2019 01 15.
Artigo em Inglês | MEDLINE | ID: mdl-30657116

RESUMO

In adult thalassemia major (TM) patients, a number of occult and emerging endocrine complications, such as: central hypothyroidism (CH), thyroid cancer, latent hypocortisolism, and growth hormone deficiency (GHD) have emerged and been reported. As the early detection of these complications is essential for appropriate treatment and follow-up, the International Network of Clinicians for Endocrinopathies in Thalassemia and Adolescent Medicine (ICET-A) promoted a survey on these complications in adult TM patients, among physicians (pediatricians, hematologists and endocrinologists) caring for TM patients in different countries. The data reported by 15 countries are presented.The commonest endocrine complications registered in 3.114 TM adults are CH and GHD (4.6 % and 3.0 %, respectively), followed by latent hypocortisolism (1.2%). In 13 patients (0.41%) a cytological papillary or follicular thyroid carcinoma was diagnosed in 11 and 2 patients, respectively, and a lobectomy or thyroidectomy was carried out. Of 202 TM patients below the age of 18 years, the  reported endocrine complications were: GHD in 4.5%, latent hypocortisolism in 4.4% and central hypothyrodisim in 0.5%. Transition phase was an area of interest for many clinicians, especially as patients with complex chronic health conditions are responding to new treatments extending their lifespan beyond imagination.. In conclusion, our survey provides a better understanding of  physicians' current clinical practices and beliefs in the detection, prevention and treatment of some endocrine complications prevailing in adult TM patients. Regular surveillance, early diagnosis, treatment and follow-up in a multi-disciplinary specialized setting are recommended.


Assuntos
Doenças do Sistema Endócrino/epidemiologia , Talassemia beta/complicações , Adolescente , Adulto , Fatores Etários , Criança , Doenças do Sistema Endócrino/diagnóstico , Doenças do Sistema Endócrino/terapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Inquéritos e Questionários , Adulto Jovem , Talassemia beta/diagnóstico , Talassemia beta/terapia
7.
Acta Biomed ; 88(2): 232-236, 2017 08 23.
Artigo em Inglês | MEDLINE | ID: mdl-28845842

RESUMO

Paraovarian cysts or paratubal cysts (PTCs) arise from either the mesothelium or from paramesonephric remnants. These present as either adnexal mass or as an incidental finding. Diagnosis is usually established on ultrasound and it is important to differentiate these from ovarian cysts. Typically PCTs appear as simple cysts by ultrasound and are indistinguishable from ovarian cysts if one does not recognize the extraovarian location. Occasionally, PTCs have internal echoes due to hemorrhage. PTCs are usually asymptomatic and benign. The differential diagnosis includes a simple ovarian cyst, peritoneal inclusion cyst and hydrosalpinx. Malignant changes have been reported in about 2% to 3%, and it should be suspected if papillary projections are present. PTCs management depend upon the presence and severity of the symptoms, the cyst size and US characteristics, CA 125 results, age of the patient and the risk of malignancy. Simple PTCs can be expected to regress and may be managed expectantly. When surgery is indicated, a joint multidisciplinary management by the paediatric surgeons and trained paediatric gynaecologists should be the gold standard.


Assuntos
Cistos Ovarianos/terapia , Adolescente , Feminino , Humanos , Cistos Ovarianos/diagnóstico por imagem
8.
Acta Biomed ; 88(1): 112-118, 2017 04 28.
Artigo em Inglês | MEDLINE | ID: mdl-28467345

RESUMO

Iron deficiency anemia (IDA) is a global public health problem affecting both developing and developed countries with major consequences for human health as well as social and economic development. It occurs at all stages of the life cycle, but is more prevalent in pregnant women and young children. IDA appears to be more common in diabetic patients compared to non-diabetic population. Iron deficiency (ID) and IDA can impair glucose homeostasis in animals and human and may negatively affect glycemic control and predispose to more complications in diabetic patients. On the other hand diabetes and its complications are associated with anemia and its correction improves diabetes control and may prevent or delay the occurrence of complications. Physicians treating this form of anemia should be aware of its negative effect on glycemic control in normal and diabetic patients (both type 1 and type 2). They should prevent ID and treat early all those with IDA.This brief review aims to enlighten the different effects of IDA on glucose metabolism in normal and diabetic patients.


Assuntos
Anemia Ferropriva/sangue , Glicemia/metabolismo , Diabetes Mellitus/sangue , Anemia Ferropriva/terapia , Animais , Suplementos Nutricionais , Expressão Gênica , Hemoglobinas Glicadas/análise , Homeostase , Humanos , Ferro/uso terapêutico
9.
Pediatr Endocrinol Rev ; 13(3): 612-9, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27116848

RESUMO

Thyroid hemiagenesis (TH) is a rare congenital abnormality of the thyroid gland, characterised by the absence of one lobe. The true prevalence of this congenital abnormality is not known because the absence of one thyroid lobe usually does not cause clinical symptoms by itself. Between 1970 and 2010, 329 cases of TH have been reported. It is interesting to note that most cases have an agenesis of the left lobe (80% of cases) followed by the isthmus (44-50% of cases). Although the female to male ratio was 1:1.4 in 24,032 unselected 11-to 14-yr-old schoolchildren from South-eastern Sicily, several other reports have documented a higher prevalence in women, which may indicate a possible gender association. Most cases of TH are diagnosed when patients present a lesion in the functioning lobe. The functioning lobe of the thyroid gland can be a site of pathological changes similar to a normally developed gland and may present a spectrum of diseases like multinodular goiter, colloid goiter, follicular adenoma, thyroiditis, hypothyroidism and hyperthyroidism. In three of our patients, TH was associated with Hashimoto thyroiditis (n = 1) and with subclinical hypothyroidism (n = 2). The frequency of thyroid abnormalities in patients with TH varies with age, due to the longer exposure of the hemi-agenetic gland to TSH overstimulation in older patients. This could explain the controversy about the benign character of this anomaly. Other extrathyroidal lesions, such as parathyroid adenoma or hyperplasia, cervical thymic cysts, ectopic sublingual thyroid gland and thyroglossal duct cyst have been reported with TH. Therefore, systematic follow-up of all identified cases is recommended.


Assuntos
Envelhecimento/fisiologia , Disgenesia da Tireoide , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Estudos Retrospectivos , Disgenesia da Tireoide/diagnóstico , Disgenesia da Tireoide/epidemiologia , Disgenesia da Tireoide/genética , Disgenesia da Tireoide/terapia , Glândula Tireoide/embriologia , Glândula Tireoide/crescimento & desenvolvimento
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