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  1. AU="Tcheroyan, Raya"
  2. AU="Campbell-Bell, Cherith M"
  3. AU="Bayne, Max"
  4. AU="Kavatagimath, Satish"
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  1. Article ; Online: Pharmacotherapy of obesity: an update on the available medications and drugs under investigation.

    Chakhtoura, Marlene / Haber, Rachelle / Ghezzawi, Malak / Rhayem, Caline / Tcheroyan, Raya / Mantzoros, Christos S

    EClinicalMedicine

    2023  Volume 58, Page(s) 101882

    Abstract: Obesity is an epidemic and a public health threat. Medical weight management remains one of the options for the treatment of excess weight and recent advances have revolutionized how we treat, and more importantly how we will be treating obesity in the ... ...

    Abstract Obesity is an epidemic and a public health threat. Medical weight management remains one of the options for the treatment of excess weight and recent advances have revolutionized how we treat, and more importantly how we will be treating obesity in the near future. Metreleptin and Setmelanotide are currently indicated for rare obesity syndromes, and 5 other medications (orlistat, phentermine/topiramate, naltrexone/bupropion, liraglutide, semaglutide) are approved for non-syndromic obesity. Tirzepatide is about to be approved, and other drugs, with exciting novel mechanisms of action primarily based on incretins, are currently being investigated in different phases of clinical trials. The majority of these compounds act centrally, to reduce appetite and increase satiety, and secondarily, in the gastrointestinal tract to slow gastric emptying. All anti-obesity medications improve weight and metabolic parameters, with variable potency and effects depending on the specific drug. The currently available data do not support a reduction in hard cardiovascular outcomes, but it is almost certain that such data are forthcoming in the very near future. The choice of the anti-obesity medication needs to take into consideration the patient's clinical and biochemical profile, co-morbidities, and drug contra-indications, as well as expected degree of weight loss and improvements in cardio-renal and metabolic risk. It also remains to be seen whether precision medicine may offer personalized solutions to individuals with obesity, and whether it may represent the future of medical weight management along with the development of novel, very potent, anti-obesity medications currently in the pipeline.
    Funding: None.
    Language English
    Publishing date 2023-03-20
    Publishing country England
    Document type Journal Article ; Review
    ISSN 2589-5370
    ISSN (online) 2589-5370
    DOI 10.1016/j.eclinm.2023.101882
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Homocysteine levels, H-Hypertension, and the MTHFR C677T genotypes: A complex interaction

    Al Hageh, Cynthia / Alefishat, Eman / Ghassibe-Sabbagh, Michella / Platt, Daniel E. / Ḥamdān, Ḥamdān / Tcheroyan, Raya / Chammas, Elie / O'Sullivan, Siobhan / Abchee, Antoine / Wang, Binyan / Xu, Xiping / Nader, Moni / Zalloua, Pierre

    Heliyon. 2023 June, v. 9, no. 6 p.e16444-

    2023  

    Abstract: High homocysteine levels are associated with increased risk of hypertension and stroke. Homocysteine is metabolized by the methylenetetrahydrofolate reductase (MTHFR). We aimed to investigate the levels of homocysteine and their association with ... ...

    Abstract High homocysteine levels are associated with increased risk of hypertension and stroke. Homocysteine is metabolized by the methylenetetrahydrofolate reductase (MTHFR). We aimed to investigate the levels of homocysteine and their association with hypertension, stroke, and antihypertensive medication usage in patients with different MTHFR C677T genotypes. Genotype frequency of MTHFR polymorphism was performed, and plasma homocysteine levels were measured in 2,640 adult Lebanese patients. Hypertension, history of stroke, and list of medications were documented, among other clinical and demographic parameters. The TT mutant genotype and the T mutant allele of MTHFR were more prevalent in hyperhomocysteinemia (HHcy) and H-hypertensive (H-HTN, defined as hypertension with hyperhomocysteinemia) patients when compared to non-HHcy subjects and non H-HTN patients respectively. Homocysteine levels were significantly higher in hypertensive patients specifically among those on diuretics. A higher level of homocysteine was found in hypertensive patients with the MTHFR T allele compared to patients carrying the C allele. Among the T allele carriers, the average plasma homocysteine level was 13.3 ± 0.193 μmol/L for hypertensive subjects compared to 11.9 ± 0.173 μmol/L (non-hypertensives). Furthermore, homocysteine levels significantly correlated with stroke risk in patients with the T alleles. We found an association of homocysteine with hypertension, hypertensive medication, and stroke risk among patients with the MTHFR T allele and the TT genotype. The association of diuretics therapy with higher homocysteine levels calls for routine measurements and therapeutic control of homocysteine in patients on diuretic, to improve health-related outcomes.
    Keywords adults ; alleles ; drug therapy ; genotype ; homocysteine ; hypertension ; methylenetetrahydrofolate reductase ; mutants ; risk ; stroke ; Lebanon ; H-hypertension ; HHcy ; Diuretics ; MTHFR ; C677T ; rs1801133 ; HTN ; H-HTN ; NHANES III ; SHEP ; CSPPT ; MEIA ; HWE ; ACE
    Language English
    Dates of publication 2023-06
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Use and reproduction
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e16444
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Homocysteine levels, H-Hypertension, and the MTHFR C677T genotypes: A complex interaction.

    Al Hageh, Cynthia / Alefishat, Eman / Ghassibe-Sabbagh, Michella / Platt, Daniel E / Hamdan, Hamdan / Tcheroyan, Raya / Chammas, Elie / O'Sullivan, Siobhán / Abchee, Antoine / Wang, Binyan / Xu, Xiping / Nader, Moni / Zalloua, Pierre

    Heliyon

    2023  Volume 9, Issue 6, Page(s) e16444

    Abstract: Background and objectives: High homocysteine levels are associated with increased risk of hypertension and stroke. Homocysteine is metabolized by the methylenetetrahydrofolate reductase (: Methods and results: Genotype frequency of : Conclusions: ... ...

    Abstract Background and objectives: High homocysteine levels are associated with increased risk of hypertension and stroke. Homocysteine is metabolized by the methylenetetrahydrofolate reductase (
    Methods and results: Genotype frequency of
    Conclusions: We found an association of homocysteine with hypertension, hypertensive medication, and stroke risk among patients with the
    Language English
    Publishing date 2023-05-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e16444
    Database MEDical Literature Analysis and Retrieval System OnLINE

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