Hakan Yavuzer

ORCID: 0000-0003-2685-6555
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About
Contact & Profiles
Research Areas
  • Nutrition and Health in Aging
  • Frailty in Older Adults
  • COVID-19 Clinical Research Studies
  • Long-Term Effects of COVID-19
  • COVID-19 and healthcare impacts
  • Body Composition Measurement Techniques
  • Bone health and osteoporosis research
  • Alzheimer's disease research and treatments
  • Health and Well-being Studies
  • Blood Pressure and Hypertension Studies
  • Adipokines, Inflammation, and Metabolic Diseases
  • Bone Metabolism and Diseases
  • Clinical Nutrition and Gastroenterology
  • SARS-CoV-2 and COVID-19 Research
  • Pelvic floor disorders treatments
  • Antioxidant Activity and Oxidative Stress
  • Cardiovascular Health and Disease Prevention
  • Bone health and treatments
  • Child Nutrition and Feeding Issues
  • Amyloidosis: Diagnosis, Treatment, Outcomes
  • Dialysis and Renal Disease Management
  • Regulation of Appetite and Obesity
  • Vitamin D Research Studies
  • Neurological Disorders and Treatments
  • Folate and B Vitamins Research

Istinye University
2024-2025

Gaziosmanpaşa Taksim Eğitim ve Araştırma Hastanesi
2025

Istanbul University-Cerrahpaşa
2015-2024

Istanbul University
2012-2018

Turkish Society of Hematology
2016

Orient-Institut Istanbul
2015

Bridge University
2015

The aim of this study is to investigate the effect oral l-Glutamine supplementation on hospitalization time, need for intensive care unit and Coronavirus Disease-19 (Covid-19) mortality.The included 30 Covid-19 patients using who did not use with similar age, gender clinical status. Diagnostic tests, laboratory examinations, findings computed thorax tomography imaging were evaluated.Hospitalization time was 10.4 ± 1.9 days in without L-Glutamine group 8.9 1.8 (p = 0.005). In group, four...

10.1016/j.yclnex.2020.07.003 article EN cc-by-nc-nd Clinical Nutrition Experimental 2020-07-29

Objectives: The aim of this study is to evaluate the relationship miR-21, nitric oxide (NOx) and endothelial synthase (eNOS) with subclinical atherosclerosis in carotid arteries by measuring intima media thickness (CIMT) patients hypertension healthy controls. Design Methods: A total 28 hypertensive controls were enrolled. MiR-21 expression was analyzed quantitative reverse transcription-PCR NOx, eNOS levels measured ELISA assay. CIMT evaluated ultrasonography ≥ 0.8 mm accepted as increased...

10.3109/10641963.2015.1036064 article EN Clinical and Experimental Hypertension 2015-06-26

White coat hypertension (WCH) is a high cardiovascular risk condition, and fundamental understanding of the cause pathophysiology disorder still lacking. Recent studies demonstrated that microRNAs (miRNAs) are involved in hypertension; however, roles miRNAs WCH not known. The expressions selected 10 were investigated independently plasma samples from 30 (HT) patients, normotensive (NT) subjects. MiR-21, miR-122, miR-637, let-7e expression levels significantly upregulated HT group compared...

10.1097/md.0000000000000693 article EN cc-by-nc Medicine 2015-04-01

Background and Objectives: This study aims to evaluate neurosurgery consultations for elderly patients during following the COVID-19 pandemic. Materials Methods: included aged 65 older who were hospitalized in non-neurosurgery departments at Istinye University Gaziosmanpasa Medical Park Hospital referred between 1 April 2020 31 May 2024. Patients intensive care unit emergency department excluded. The period from 30 2022 was defined as pandemic period, 2024 post-pandemic period. Results: A...

10.3390/medicina61020315 article EN cc-by Medicina 2025-02-11

To recognize the period of exaggerated cytokine response in patients with coronavirus disease 2019 (COVID-19) pneumonia, and to describe clinical outcomes using tocilizumab as a treatment option. The data 12 adult COVID-19 pneumonia who were followed inpatient clinics Biruni University Medical Faculty Hospital (Istanbul, Turkey) retrospectively analyzed. Diagnostic tests, laboratory examinations, findings, computed tomography thorax imaging results evaluated. A dramatic improvement was...

10.1002/jmv.26111 article EN Journal of Medical Virology 2020-06-02

To investigate the relationship between handgrip strength with types of urinary incontinence (UI) and pelvic floor muscle (PFMS) in women.Ninety-two women, who presented to geriatric urology outpatient clinics complaining UI July 2019 February 2020 had indicated undergo urodynamic assessment after basic neurourological evaluation, were included this cross-sectional study. The presence identified by clinical examination studies. Demographic parameters, anthropometric data, comorbidities...

10.1002/nau.24699 article EN Neurourology and Urodynamics 2021-05-18

The aim of the present study was to determine systemic levels oxidative stress markers, such as ischemia-modified albumin (IMA), advanced oxidation protein products (AOPP), ferric reducing antioxidant power (FRAP) and prooxidant-antioxidant balance (PAB), clarify redox homeostasis in patients with Alzheimer's disease, compare them mentally healthy persons same age.A total 38 disease (AD) 34 sex- age-matched control subjects were included this study.The had significantly higher AOPP, IMA PAB...

10.1111/ggi.12361 article EN Geriatrics and gerontology international/Geriatrics & gerontology international 2014-10-27

Background Depression is one of the most common mental disorders among older adults and depressive symptoms are strongly associated with adverse health outcomes. We aim to examine whether sarcopenia malnutrition in adults. Methods reviewed hospital records 447 patients (≥65 years) who were admitted outpatient clinics, retrospectively. In addition demographic characteristics, all participants measured for usual gait speed (UGS), handgrip strength (HGS) skeletal muscle mass (SMMI) by using...

10.1111/psyg.12903 article EN Psychogeriatrics 2022-10-28

OBJECTIVE: To investigate the relationship of sarcopenia with systemic inflammation response index (SIRI), monocyte to high-density lipoprotein ratio (MHR) and platelet parameters in geriatric patients.METHODS: We designed a cross-sectional retrospective study patients presented outpatient clinic for first time.The diagnosis was made accordance EWGSOP2 criteria.SIRI, MHR, mean volume /Platelet count (MPV/Plt), distribution width (PDW/Plt), platelet/lymphocyte (PLR) were calculated from...

10.4149/bll_2024_49 article EN Bratislavské lekárske listy/Bratislava medical journal 2024-01-01

Alteration in energy expenditure or metabolism is the most accused risk issue for onset and course of neurodegenerative cognitive disorders. Neuropeptides are suggested to be related with learning memory. Phoenixin (PNX) recently reported neuropeptide we aimed compare plasma level people subjective memory complaints, patients mild impairment, Alzheimer's disease (AD).

10.1017/s1041610217000825 article EN cc-by-nc-nd International Psychogeriatrics 2017-05-28

Abstract In this study, we report a large family cluster consisting of 29 genetically related patients hospitalized with coronavirus disease‐2019 (COVID‐19). We sought to determine the clinical characteristics relevant course COVID‐19 by comparing unrelated SARS‐CoV‐2 infection so that presence potential determinants disease severity, other than traditional risk factors previously reported, could be investigated. Twenty‐nine patient files were investigated in group 1 and 2 was created 52...

10.1002/jmv.26106 article EN Journal of Medical Virology 2020-06-03

Serum fibroblast growth factor (FGF)-19 and FGF-21 levels have been reported to be associated with muscle hemostasis. This study aims explore the relationship between of these markers sarcopenia.In our single-center, cross-sectional study, patients over 65 years old presenting geriatric outpatient clinic were included. Patients secondary sarcopenia excluded. The Strength-Assistance walking-Rising from a chair-Climbing stairs Falls (SARC-F) questionnaire was applied all patients. Sarcopenia...

10.1111/ggi.14263 article EN Geriatrics and gerontology international/Geriatrics & gerontology international 2021-08-17

Aging is characterized by appetite loss and cachexia, i.e., factors that contribute to malnutrition. An inflammation marker, neutrophil-to-lymphocyte ratio (NLR), a significant prognostic predictor of many geriatric syndromes. We aim determine the association between NLR malnutrition.We designed retrospective study on hospitalized patients in unit university hospital January 2019 2021. Demographic data, chronic diseases, history smoking, length stay, number drugs, laboratory further...

10.4149/bll_2023_076 article EN Bratislavské lekárske listy/Bratislava medical journal 2023-01-01

Matrix metalloproteinases (MMPs) play an important role in bone resorption and are regulated by tissue inhibitors of (TIMPs). We investigated the use MMP2/TIMP2 MMP9/TIMP1 ratios as biomarkers geriatric osteoporosis evaluated relationship between syndromes.This analytical cross-sectional study involved 87 patients (41 with osteoporosis) treated at outpatient clinic a university hospital. The demographic characteristics, comprehensive assessment scores, laboratory findings, mineral density...

10.4235/agmr.23.0024 article EN cc-by-nc Annals of Geriatric Medicine and Research 2023-05-19

Background/aim: We aimed to investigate the factors affecting mortality of patients aged 65 years or older who were hospitalized with diagnosis new coronavirus pneumonia (COVID-19). Materials and methods: This is a retrospective study old COVID-19 in İstanbul University-Cerrahpaşa, Cerrahpaşa Medical Faculty Hospital, between March 11 May 28, 2020. Demographic, clinical, treatment, laboratory data extracted from electronic medical records. used univariate multivariate logistic regression...

10.3906/sag-2008-91 article EN other-oa TURKISH JOURNAL OF MEDICAL SCIENCES 2020-12-14

10.1007/s40815-020-00921-x article EN International Journal of Fuzzy Systems 2020-09-14

Because of the senescence immune system, antibody response to COVID-19 vaccines may differ from older younger adults. The study aim compares titers SARS-CoV-2 IgG patients ≥60 years who received three doses CoronaVac vaccine and those two CoronaVac+1 dose Pfizer-BioNTech after 1 month last vaccination. Patients between March 1, 2021, April 30, did not have disease before first vaccination were negative for antibodies, whose antibodies tested third vaccination, any during follow-up included....

10.1002/jmv.27531 article EN Journal of Medical Virology 2021-12-18
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