Publications by authors named "Sameh Hadj Taieb"

Background: The effect of halophyte plant "Salicornia arabica" decocted extract (HDE) on histological damage and metabolic disorders induced by a High-Caloric Diet (HCD) in Psammomys obesus (P. obesus) was investigated.

Methods: Forty P.

View Article and Find Full Text PDF

The present study evaluated the antidiabetic potential of a green, oleuropein-rich extract from olive leaves in alloxan-induced diabetic Wistar rats. Diabetes was induced by a single intraperitoneal injection of alloxan (180 mg/kg b.w.

View Article and Find Full Text PDF

Hypovitaminosis D and hyperreninemia are associated with poor prognosis in patients with chronic heart failure (CHF). We aimed to evaluate the effect of vitamin D (VitD) supplementation on the renin-angiotensin-aldosterone system (RAAS) in CHF patients with reduced left ventricular ejection fraction (HFrEF). A double-blind placebo-controlled randomized clinical trial was conducted in HFrEF patients.

View Article and Find Full Text PDF
Article Synopsis
  • Psoriasis is a common autoimmune skin disease, but its exact cause is still unclear; this study explores whether specific biomarkers can indicate the presence and severity of the condition.
  • The research focuses on the relationship between serum levels of VEGF, MMP-9, and TIMP-2 in 115 psoriatic patients compared to 51 controls, using ELISA methods for measurement.
  • Findings show that while VEGF has low effectiveness in distinguishing between psoriasis variants, the combination of TIMP-2 and inflammation Z-score significantly improves discriminative power, highlighting the role of inflammation and tissue damage in the disease's progression.
View Article and Find Full Text PDF

This work investigated the biochemical disturbances and histological alteration in animal model fed different high calorie diets (HCDs) during three months. Four diets were used: a low-calorie natural diet, halophyte plant used as control (LCD), a high standard carbohydrate diet rich in protein, HCD 0, a high carbohydrate diet rich in two concentrations of fat, HCD 1 and HCD 2. All animals having received HCDs developed dyslipidemia after one month of experiment with distinction of different sub-groups developing or not obesity and diabetes.

View Article and Find Full Text PDF

Background: Organic aciduria diseases (OADs) occur worldwide, with differences in prevalence and patterns between populations.

Objectives: To describe the spectrum of OADs identified in Tunisia over a 35-years period.

Materials And Methods: This retrospective study included patients who were diagnosed with OADs between 1987 and 2022 in the Laboratory of Biochemistry, Rabta Hospital, Tunisia.

View Article and Find Full Text PDF

Background: We report the results gathered over 15 years of screening for congenital disorders of glycosylation syndrome (CDGS) in Tunisia according to clinical and biochemical characteristics.

Methods: Our laboratory received 1055 analysis requests from various departments and hospitals, for children with a clinical suspicion of CDGS. The screening was carried out through separation of transferrin isoforms by capillary zone electrophoresis.

View Article and Find Full Text PDF

Background: Maple syrup urine disease (MSUD) is a severe life-threatening metabolic disorder. Patients' poor outcomes could be prevented by early diagnosis and regular monitoring, which mainly depend on the analysis of branched amino acids (BCAAs) in plasma. The study aimed to test whether the analysis of BCAAs by ultra-performance liquid chromatography (UPLC) is an alternative to an analysis by ion-exchange chromatography (IEC) for the diagnosis and monitoring of MSUD.

View Article and Find Full Text PDF

Background: This cross-sectional study aimed to describe and discuss the epidemiology of mucopolysaccharidoses (MPS) in Tunisia.

Methods: Patients diagnosed with a MPS disorder in two referral laboratories in Tunisia between 1999 and 2021 were included. Diagnosis was based on clinical and radiological features and analysis of urinary glycosaminoglycans, and enzyme assay in some of the patients.

View Article and Find Full Text PDF

To determine the prevalence of vitamin B12 deficiency in a Tunisian population with type 2 diabetes (T2D) on metformin treatment for more than three years and to identify its risk factors. This is a cross-sectional study conducted on 257 patients with T2D treated with metformin for at least three years. Patients were divided into two groups according to their vitamin B12 status.

View Article and Find Full Text PDF

Selected mucosal and plasma polyunsaturated fatty acids (PUFAs) and related oxylipins and endocannabinoids were determined in 28 Crohn's disease (CD) patients and 39 controls. Fasting blood and colonic biopsies were collected in all participants, during a disease flare for the patients. Thirty-two lipid mediators including PUFAs, oxylipins, and endocannabinoids were assessed by LC-MS/MS.

View Article and Find Full Text PDF

is a halophyte plant that has been used in traditional medicine for the treatment of scurvy, goiter, and hypertension. It is commercialized in Europe and Asia as fresh salads, pickled vegetables, green salt, or tea powder. This work is the first to assess the potential anti-obesity and anti-dyslipidemic effects of decocted extract (SADE).

View Article and Find Full Text PDF

Aim: The aim of the study is to report on epidemiological, clinical, and biochemical characteristics of nonketotic hyperglycinemia (NKH) in Tunisia.

Methods: Patients diagnosed with NKH in Laboratory of Biochemistry at Rabta hospital (Tunis, Tunisia) between 1999 and 2018 were included. Plasma and cerebrospinal fluid (CSF) free amino acids were assessed by ion exchange chromatography.

View Article and Find Full Text PDF

Matrix metalloproteinases (MMPs) are implicated in atherosclerosis evolution into a coronary artery disease (CAD). They could be used as biomarkers for a predictive approach when they are studied simultaneously. We aim in our study to demonstrate prospectively in patients with history of CAD that MMPs level is linked to clinical cardiovascular outcomes.

View Article and Find Full Text PDF

Calcific mitral valve stenosis (MVS) is a common disease characterized by extensive remodeling of the extracellular matrix via matrix metalloproteinases (MMPs). The mechanism of calcification due to extensive matrix remodeling remains unclear. In this study, we investigated the relationship between MMP-3, tissue inhibitors of metalloproteinases (TIMPs) as well as pro-inflammatory cytokines and the phenomenon of calcification in MVS.

View Article and Find Full Text PDF

Fatty acids (FAs) are thought to impact carcinogenesis by affecting cell signaling. A case-control study including 250 patients with urothelial bladder cancer (UBC) and 250 controls was conducted. Plasma FAs composition was assessed using capillary gas chromatography.

View Article and Find Full Text PDF

Although High-intensity interval training (HIIT) has shown its effectiveness in improving body composition, cardio-respiratory fitness and lipid profile in obese adults, evidences remain limited in overweight/obese youth. This study was conducted to investigate the effect of a 12-week HIIT program without caloric restriction on body composition and lipid profile among young overweight/obese men. Twenty healthy obese youth were randomly allocated into two groups; experimental group (HIIT) and control group.

View Article and Find Full Text PDF

Background: Elevated total plasma homocysteine (tHcy) is an established risk factor for occlusive vascular disease and is thought to increase the risk of pregnancy loss, birth defects, and cognitive impairment in the elderly.

Objectives: To determine tHcy standard values and the prevalence of hyperhomocysteinemia (HHC) and to examine their association with demographic and life style factors in the Greater Tunis population.

Methods: This cross-sectional study included 2712 subjects (1228 males and 1484 females) aged 35 - 70 years, living in the Greater Tunis region.

View Article and Find Full Text PDF

Background: Economic development and socio-demographic changes have led to increased frequency of cardiovascular disease and other chronic diseases in Tunisia.

Objectives: To assess the prevalence of different types of dyslipidemia and to examine their association with sociodemographic characteristics in the Greater Tunis population.

Methods: The study included 2712 subjects (1228 men and 1484 women) aged 35-70 years, recruited during the years 2004 and 2005 from the Greater Tunis population.

View Article and Find Full Text PDF

Background: Guanidinoacetate methyltransferase (GAMT) deficiency is a recently described disorder and few cases have been reported to date. As it is a treatable pathology, we seek to contribute to its better understanding, particularly to further elucidate its biochemical diagnosis for early treatment.

Methods: The patients, two brothers aged 13 years (P1) and 11 years (P2), have been explored for signs and symptoms suggestive of inborn errors of metabolism.

View Article and Find Full Text PDF

Background: Inborn errors of metabolism are neglected in developing countries because they are not as common as infectious and nutritional disorders. In Tunisia, no information is available on the incidence and epidemiological features of these inherited metabolic diseases.

Aims: To precise the profile of aminoacidopathies other than phenylketonuria and organic acidurias and to estimate their incidences in Tunisia.

View Article and Find Full Text PDF

Background: Vitamin status and role in end stage renal disease (ESRD) is controversial. This study was aimed at assessing vitamin A, E, B12, and folic acid status in Tunisian ESRD patients and testing their predictive value for overall mortality and cardiovascular events (CVE).

Methods: We examined plasma vitamin A, E, B12, and folic acid in 115 ESRD patients and looked for any correlation with all-cause mortality and CVE after a six year follow-up.

View Article and Find Full Text PDF