1,097 results match your criteria: "Institute of Endocrinology and Metabolism[Affiliation]"

This study aims to investigate the development of secondary bacterial infection and risk factors associated with it in critical COVID-19 patients, and to identify the most common pathogen groups in them. All the cohort studies were retrieved from Scopus, Google Scholar, Web of Science, and MEDLINE from the inception of COVID-19 to 2022 for the following keywords: 'Klebsiella" AND "COVID-19". The most common comorbidities among the patients with COVID-19 were respiratory disease (33.

View Article and Find Full Text PDF
Article Synopsis
  • - Zymosan nanoparticles, derived from yeast, have been developed for drug delivery, particularly with doxorubicin (DOX), and their properties were analyzed using various sophisticated techniques.
  • - The release of DOX from these nanoparticles depends on pH, and their impact on cancer cells was assessed, showing these carriers enhance the effectiveness of DOX against C26 cells by affecting specific gene expressions related to cancer growth and apoptosis.
  • - The study indicates that zymosan nanoparticles not only improve targeted drug delivery but also promote cell death in cancer cells by modifying key signaling pathways, leading to a synergistic anti-cancer effect.
View Article and Find Full Text PDF

Enhancing protein delivery for tissue regeneration: Development of AGR2-loaded hydrogels with controlled release properties.

Int J Biol Macromol

February 2024

Department of Microsystems Engineering, University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany. Electronic address:

The growth factor Anterior Gradient 2 (AGR2) has been shown to have an effective role in tissue regeneration, but remained largely unexplored in localized tissue engineering applications. Alginate beads have been proven as safe carriers for protein encapsulation, but they suffer from fragility and uncontrolled protein release. For such alginate systems, little is known about how changes in concentrations and ion-crosslinking affect protein release and accumulation in 3-D matrices.

View Article and Find Full Text PDF

Pravastatin promotes type 2 diabetes vascular calcification through activating intestinal Bacteroides fragilis to induce macrophage M1 polarization.

J Diabetes

June 2024

The First Affiliated Hospital, Institute of Endocrinology and metabolism, Center for Clinical Research in Diabetes, Hengyang Medical School, University of South China, Hengyang, China.

Article Synopsis
  • Pravastatin, a common lipid-lowering drug for diabetes patients, is linked to increased vascular calcification (VC), but its mechanisms remain unclear.
  • This study used various methods like 16S rRNA sequencing and flow cytometry to investigate gut bacteria and metabolites, revealing a significant rise in Bacteroides fragilis (BF) among pravastatin users and T2D mice treated with the drug.
  • The research concluded that pravastatin enhances the secretion of 3,4,5-trimethoxycinnamic acid (TMCA) from BF, which subsequently promotes macrophage M1 polarization, a factor believed to contribute to VC in type 2 diabetes cases.
View Article and Find Full Text PDF

Endocarditis caused by Aspergillus fumigatus in a patient 9 months after COVID-19 infection recovery: a case report and review of the literature.

J Med Case Rep

December 2023

Department of Dermatology, Rasool Akram Medical Complex Clinical Research Development Center (RCRDC), School of Medicine, Iran University of Medical Sciences, Niayesh Street, Sattarkhan Avenue, Tehran, 1445613131, Iran.

Background: Aspergillus spp. are among the fungal pathogens that can cause life-threatening infections in patients with a history of COVID-19.

Case Presentation: We present the case of a 58-year-old Iranian woman with post-COVID-19 Aspergillus fumigatus endocarditis complicated by numerous thromboembolisms.

View Article and Find Full Text PDF

Importance: The long-term impacts of early-life famine exposure on Type 2 Diabetes Mellitus (T2DM) have been widely documented across countries, but it remains less clear what is the critical time window and if there is a dose-response between famine intensity and risk of T2DM.

Objective: To establish the relation between prenatal famine exposure and adult Type 2 diabetes mellitus (T2DM).

Design: A national cross-sectional study.

View Article and Find Full Text PDF

Management of phaeochromocytoma and paraganglioma in patients with germline SDHB pathogenic variants: an international expert Consensus statement.

Nat Rev Endocrinol

March 2024

Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.

Adult and paediatric patients with pathogenic variants in the gene encoding succinate dehydrogenase (SDH) subunit B (SDHB) often have locally aggressive, recurrent or metastatic phaeochromocytomas and paragangliomas (PPGLs). Furthermore, SDHB PPGLs have the highest rates of disease-specific morbidity and mortality compared with other hereditary PPGLs. PPGLs with SDHB pathogenic variants are often less differentiated and do not produce substantial amounts of catecholamines (in some patients, they produce only dopamine) compared with other hereditary subtypes, which enables these tumours to grow subclinically for a long time.

View Article and Find Full Text PDF

Thiamine deficiency is a life-threatening nutritional abnormality observed in the patients with obesity and following bariatric surgery. The aim of the present study is to determine the prevalence of thiamine deficiency prior to and after bariatric procedures. PubMed, Web of Science, Google scholar, CENTRAL, ProQuest, and Scopus were searched to retrieve relevant studies containing data on thiamine deficiency in patients with obesity who underwent bariatric surgery.

View Article and Find Full Text PDF

Lipid accumulation, inflammation, and oxidative stress are the most important causes of muscle insulin resistance. The aim of this study was to investigate the single and combined treatment effects of metformin (MET) and morin (MOR) on lipid accumulation, inflammation, and oxidative stress in the skeletal muscle of mice fed a high-fat diet. The mice were supplemented with MET (230 mg/kg diet), MOR (100 mg/kg diet), and MET + MOR for 9 weeks.

View Article and Find Full Text PDF

Exosomal long non-coding RNAs in glioblastoma.

Clin Chim Acta

January 2024

Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Electronic address:

Glioblastoma multiforme (GBM) is the most prevalent primary tumor found in the central nervous system, accounting for 70% of all adult brain tumors. The median overall survival rate is one year post-diagnosis with treatment, and only four months without treatment. Current GBM diagnostic methods, such as magnetic resonance imaging (MRI), surgery, and brain biopsies, have limitations.

View Article and Find Full Text PDF

Introduction: Thyroid specialists influence how hypothyroid patients are treated, including patients managed in primary care. Given that physician characteristics influence patient care, this study aimed to explore thyroid specialist profiles and associations with geo-economic factors.

Methods: Thyroid specialists from 28 countries were invited to respond to a questionnaire, Treatment of Hypothyroidism in Europe by Specialists: an International Survey (THESIS).

View Article and Find Full Text PDF

Background: Detection of cancer in patients with thyroid nodules requires sensitive and specific diagnostic modalities that are accurate and inexpensive. This study aimed to identify a potential microRNA(miRNA) panel to detect papillary thyroid carcinoma (PTC).

Methods: Following a comprehensive literature review as well as miRNA target predictor databases, Real-time PCR was used to quantify the expression of candidate miRNAs in 59 tissue specimens from 30 patients with PTC and 29 patients with benign nodules.

View Article and Find Full Text PDF

Background: Cardiovascular diseases are the first leading cause of mortality in the world. Practical guidelines recommend an accurate estimation of the risk of these events for effective treatment and care. The UK Prospective Diabetes Study (UKPDS) has a risk engine for predicting CHD risk in patients with type 2 diabetes, but in some countries, it has been shown that the risk of CHD is poorly estimated.

View Article and Find Full Text PDF

A human pilot study on positive electrostatic charge effects in solid tumors of the late-stage metastatic patients.

Front Med (Lausanne)

October 2023

Nano Electronic Centre of Excellence, Nanobioelectronic Devices Laboratory, Cancer Electronics Research Group, School of Electrical and Computer Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran.

Background: Correlative interactions between electrical charges and cancer cells involve important unknown factors in cancer diagnosis and treatment. We previously reported the intrinsic suppressive effects of pure positive electrostatic charges (PEC) on the proliferation and metabolism of invasive cancer cells without any effect on normal cells in cell lines and animal models. The proposed mechanism was the suppression of pro-caspases 3 and 9 with an increase in Bax/Bcl2 ratio in exposed malignant cells and perturbation induced in the KRAS pathway of malignant cells by electrostatic charges due to the phosphate molecule electrostatic charge as the trigger of the pathway.

View Article and Find Full Text PDF

Association between rheumatoid arthritis and autoimmune thyroid disease: evidence from complementary genetic methods.

Endocrine

April 2024

Department of Endocrinology, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China.

Objectives: To assess the causal association of Rheumatoid Arthritis (RA) with Autoimmune thyroid disease (AITD).

Method: Complementary genetic approaches, including genetic correlation, Mendelian randomization (MR) and colocalization analysis, were conducted to assess the potential causal association between RA and AITD using summary statistics from large-scale genome-wide association studies (GWASs). Various sensitivity analyses had been conducted to assess the robustness and the consistency of the findings.

View Article and Find Full Text PDF

Key Clinical Message: Pott's puffy tumor is a rare condition primarily occurring in the younger population. This report highlights the clinical suspicion and diagnosis of Pott's puffy tumor in those presenting with favorable presentations, especially adolescents.

Abstract: Pott's puffy tumor (PPT) is characterized as frontal bone subperiosteal abscess and osteomyelitis, a rare condition primarily occurring in adolescents following frontal sinusitis or head trauma.

View Article and Find Full Text PDF

Body composition is related to cardiometabolic disorders and is a major driver of the growing incidence of type 2 diabetes mellitus (T2DM). Altered fat distribution and decreased muscle mass are related to dysglycemia and impose adverse health-related outcomes in people with T2DM. Hence, improving body composition and maintaining muscle mass is crucial in T2DM.

View Article and Find Full Text PDF

Uncovering the role of leucine 59 in Renilla luciferase stability and activity with error-prone PCR: Implications for protein engineering.

Protein Expr Purif

February 2024

Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran; Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.

A new variant of Renilla luciferase, named Met C-SRLuc 8, was obtained from a random mutagenesis library and expressed in Escherichia coli BL21 (DE3) plys and purified. The results of the enzyme's binding affinity, kinetic stability, and bioinformatic studies demonstrated that leucine 59, located within the hot-spot foldon in the N-terminal domain of the protein, plays a significant role in the stability and activity of Renilla luciferase. These findings may facilitate the engineering of different variants of this enzyme to achieve thermally stable versions for various biotechnological applications.

View Article and Find Full Text PDF

Genetic insights into PHARC syndrome: identification of a novel frameshift mutation in ABHD12.

BMC Med Genomics

October 2023

ENT and Head and Neck Research Center and Department, The Five Senses Health Institute, School of Medicine, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.

Article Synopsis
  • The study focuses on a novel mutation in the ABHD12 gene linked to PHARC syndrome, a rare neurodegenerative disease characterized by symptoms like polyneuropathy and hearing loss.
  • Researchers conducted whole-exome sequencing on affected siblings, identifying a specific harmful genetic variant and confirming its presence in their family using Sanger sequencing.
  • The findings highlight the importance of collaboration between healthcare professionals in diagnosing complex disorders and indicate that there is no clear correlation between specific mutations in ABHD12 and the varying symptoms of PHARC syndrome.
View Article and Find Full Text PDF

A Drug-Eluting Injectable NanoGel for Localized Delivery of Anticancer Drugs to Solid Tumors.

Pharmaceutics

August 2023

Laboratory for Innovations in MicroEngineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada.

Article Synopsis
  • Systemic chemotherapy is often inefficient and has harmful side effects due to the distribution of the drug to non-target organs, leading to the need for repeated treatments.
  • Injectable shear-thinning hydrogels (STHs) are being explored as a localized delivery system for doxorubicin, allowing for a slow release directly in or around tumors.
  • Testing in various cancer models showed that STH significantly improves survival rates in patients with breast cancer and glioblastoma, suggesting a promising approach to reduce toxicity and treatment frequency.
View Article and Find Full Text PDF

Background And Aim: Metabolic syndrome (MetS) is a well-known noncommunicable disease that plays a significant role in emerging other chronic disorders and following complications. MetS is also involved in the pathophysiology of numerous dermatological diseases. We aim to evaluate the association of MetS with the most prevalent dermatological diseases.

View Article and Find Full Text PDF

Non-alcoholic fatty liver disease and compromised endothelial function in people with type 2 diabetes.

BMC Endocr Disord

September 2023

Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Science, No. 10, Firoozeh St., Vali-asr Ave., Vali-asr Sq, Tehran, Iran.

Introduction: Nonalcoholic fatty liver disease (NAFLD) frequently coexists with type 2 diabetes mellitus (T2DM) and synergistically contributes to the development of atherosclerosis. Flow-mediated dilation (FMD) is a commonly used noninvasive test for assessing endothelial function. The main objective of this study was to explore FMD in patients with T2DM with and without NAFLD.

View Article and Find Full Text PDF

Background: Nonalcoholic fatty liver disease (NAFLD) is a complex metabolic disorder that increases the risk for cardiovascular disease in patients with type 2 diabetes mellitus (T2DM). Global longitudinal strain (GLS) is an indicator of left ventricular (LV) mechanics and can detect subclinical myocardial dysfunction. We compared the effects of pioglitazone and empagliflozin on GLS in patients with T2DM and NAFLD without established atherosclerotic cardiovascular disease.

View Article and Find Full Text PDF

Introduction And Importance: Maggot debridement therapy (MDT) is a treatment for chronic ulcers that involves using live larvae to debride the wound.

Case Presentation: We report a case of serious arterial bleeding in the cervical region in a 52-year-old woman who was hospitalized in Iran for a malignant ulcer of the retro-auricular area. The patient was brought to the hospital by Emergency medical service due to severe hemorrhagic shock.

View Article and Find Full Text PDF
Article Synopsis
  • - Tigecycline (TG) is a new antibiotic used to treat methicillin-resistant Staphylococcus aureus (MRSA) infections, and the T.E.S.T. study globally monitors bacterial resistance to TG in MRSA.
  • - A comprehensive review analyzed over 2500 articles related to TG and MRSA, ultimately including 48 relevant studies, primarily focusing on blood and respiratory samples.
  • - Although microbial resistance to TG is currently low, ongoing evaluation of its use against MRSA and other pathogens is essential to ensure effective treatment.
View Article and Find Full Text PDF