חדשות המחקר
Surya Sukumaran, Shulamit Fluss Ben-Uliel, Nir Qvit: Rational design, synthesis and structural characterization of peptides and peptidomimetics to target Hsp90/Cdc37 interaction for treating hepatocellular carcinoma (Comput Struct Biotechnol J .)
Heat shock protein 90 (Hsp90) and cell division cycle 37 (Cdc37) work together as a molecular chaperone complex to regulate the activity of a multitude of client protein kinases. These kinases belong to a wide array of intracellular signaling networks that mediate multiple cellular processes including proliferation. As a result, Hsp90 and Cdc37 represent innovative therapeutic targets in various cancers (such as leukemia, multiple myeloma, and hepatocellular carcinoma (HCC)) in which their expression levels are elevated.
Chaim Putterman: Pathogenic cellular and molecular mediators in lupus nephritis (Nat Rev Nephrol .)
Kidney involvement in patients with systemic lupus erythematosus - lupus nephritis (LN) - is one of the most important and common clinical manifestations of this disease and occurs in 40-60% of patients. Current treatment regimens achieve a complete kidney response in only a minority of affected individuals, and 10-15% of patients with LN develop kidney failure, with its attendant morbidity and considerable prognostic implications. Moreover, the medications most often used to treat LN - corticosteroids in combination with immunosuppressive or cytotoxic drugs - are associated with substantial side effects. Advances in proteomics, flow cytometry and RNA sequencing have led to important new insights into immune cells, molecules and mechanistic pathways that are instrumental in the pathogenesis of LN. These insights, together with a renewed focus on the study of human LN kidney tissue, suggest new therapeutic targets that are already being tested in lupus animal models and early-phase clinical trials and, as such, are hoped to eventually lead to meaningful improvements in the care of patients with systemic lupus erythematosus-associated kidney disease.
Johnny S Younis: At what age endometriosis-associated ovarian cancer is diagnosed? The implications for women in the reproductive age (Front Oncol . )
Endometriosis-associated ovarian cancer (EAOC) is an evolving distinct clinical entity and challenge considered to develop from endometrioma. Several systematic reviews and meta-analyses corroborated the association between endometriosis and ovarian cancer. In the most recent and comprehensive, the summary relative risk of EAOC was estimated as 1.93 compared to women with no endometriosis. Furthermore, contemporary state-of-the-art methodologies have provided evidence of genetic correlation and causal relationship between endometriosis and EAOC.
Yosefa Birati: "Yes, I can bond." Reflections of autistic women's mothering experiences in the early postpartum period (Womens Health (Lond) .)
Autism is a neurodevelopmental condition affecting communication and social interaction. Much of the research regarding childbirth and motherhood is focused on non-autistic women. Autistic mothers may experience challenges communicating their needs to health care professionals and find aspects of the hospital environment distressing, indicating a need for more informed practice. Objective: To describe the experiences of autistic women bonding with their newborns after delivery in an acute care setting.
Amnon Harel, Katereena Yamin, Itay Onn: UMSBP2 is chromatin remodeler that functions in regulation of gene expression and suppression of antigenic variation in trypanosomes (Nucleic Acids Res .)
Universal Minicircle Sequence binding proteins (UMSBPs) are CCHC-type zinc-finger proteins that bind the single-stranded G-rich UMS sequence, conserved at the replication origins of minicircles in the kinetoplast DNA, the mitochondrial genome of kinetoplastids. Trypanosoma brucei UMSBP2 has been recently shown to colocalize with telomeres and to play an essential role in chromosome end protection. Here we report that TbUMSBP2 decondenses in vitro DNA molecules, which were condensed by core histones H2B, H4 or linker histone H1.
Elias Saad, Basheer Maamoun, Assy Nimer: Increased Red Blood Cell Distribution Predicts Severity of Chronic Obstructive Pulmonary Disease Exacerbation (J Pers Med . )
Increased red blood cell distribution width (RDW) has been reported to be related to underlying chronic inflammation. Our aim is to investigate the relationship of different complete blood count (CBC) parameters such as hemoglobin level, mean corpuscular volume (MCV), mean platelet volume (MPV) or RDW with COPD exacerbation severity.
Elite Arnon-Sheleg, Moaad Farraj, Samar Michael, Amir Mari, Tawfik Khoury, Wisam Sbeit: Modified Hepatobiliary Scintigraphy for the Diagnosis of Bile Reflux in One-Anastomosis Gastric Bypass Surgery: a Prospective Multicenter Study Obes Surg . )
One-anastomosis gastric bypass (OAGB) is a relatively simple surgical procedure for those afflicted with severe obesity. Studies reported symptomatic biliary reflux gastritis and esophagitis as predominant complications. Hepatobiliary scintigraphy (HIDA) is the least invasive test for the diagnosis of bile reflux, with good sensitivity, patient tolerability, and reproducibility. The aim of this study was to define an optimized HIDA scintigraphy protocol for demonstrating bile reflux in post-OAGB patients.
Fadi Hassan, Helana Jeries, Mohammad E Naffaa: Challenges in the Timely Diagnosis of Behcet's Disease (Life (Basel) .)
Behcet's disease (BD) is a chronic, multi-systemic inflammatory disorder mainly characterized by recurrent oral and genital ulcers, skin lesions, and uveitis. As no pathognomonic laboratory test exists for BD, the diagnosis relies solely on clinical features...
Hanna Keren: Neural responses to reward valence and magnitude from pre- to early adolescence (Neuroimage .)
Background Neural activation during reward processing is thought to underlie critical behavioral changes that take place during the transition to adolescence (e.g., learning, risk-taking). Though literature on the neural basis of reward processing in adolescence is booming, important gaps remain.
Nasser Sakran: Gastrointestinal reported outcomes following One Anastomosis Gastric Bypass based on a multicenter study (Expert Rev Gastroenterol Hepatol . )
Describes gastrointestinal-related side-effects reported following One Anastomosis Gastric Bypass (OAGB).
Olga Volodko, Natalia Volinsky, Nufar Margalit, Fabio Kusniec, Doron Sudarsky, Shemy Carasso, Offer Amir: Characterization of Systemic and Culprit-Coronary Artery miR-483-5p Expression in Chronic CAD and Acute Myocardial Infarction Male Patients (Int J Mo
Coronary artery disease (CAD) is the leading cause of mortality worldwide. In chronic and myocardial infarction (MI) states, aberrant levels of circulating microRNAs compromise gene expression and pathophysiology. We aimed to compare microRNA expression in chronic-CAD and acute-MI male patients in peripheral blood vasculature versus coronary arteries proximal to a culprit area.
(Int J Mol Sci)
Raneen Abu Shqara, Samuel Chole, Inshirah Sgayer, Ayala Rozano Gorelick, Lior Lowenstein, Maya Frank Wolf: The utility of inpatient anemia workup in hemoglobin < 10 g/dL diagnosed randomly in the third trimester: a retrospective study (Arch Gynecol Obstet
About 40% of pregnant women are anemic and at an increased risk for complications. We examined the efficacy of inpatient anemia workup and treatment in pregnant women diagnosed with moderate-severe anemia (hemoglobin < 10 mg/dL), during hospitalization in the late second-trimester and third-trimester.
Maternal and cord anti-SARS-CoV-2-spike IgG following COVID-19 vaccination vs. infection during pregnancy: a prospective study, Israel October 2021-March 2022 (Am J Perinatol .)
Defining how pregnant women respond to SARS-CoV-2 infection and vaccination is critical to optimize vaccination strategies that protect mother and infant at the epidemic. This study aimed to compare Anti-SARS-CoV-2-spike IgG of vaccinated vs. infected women and to determine the optimal timing of maternal vaccination during pregnancy at the time of epidemic.
(Raneen Abu Shqara, Maya Wolf, Susana Mikhail Mustafa, Inshirah Sgayer, Tikva Assulyn, Abdallah Abu Zraki Nadine Askhar Majadla, Hagai Rechnitzer, Mona Shehadeh, Vered Fleisher Sheffer, Mor Bordeynik-Cohen, Orly Yakir, Lior Lowenstein, Eyal Sela, Michael Edelstein, Amiel Dror)
Enav Yefet: Comparison of postpartum anti-Xa levels following enoxaparin administration to prevent venous thromboembolism using two weight-based protocols A randomized controlled trial (Am J Obstet Gynecol MFM .)
During the puerperium enoxaparin is given to high risk women to prevent venous thromboembolism (VTE), a leading cause for maternal mortality. Enoxaparin activity is measured by peak plasma anti-Xa levels. The prophylactic range of anti-Xa is 0.2-0.6 international units (IU)/mL. Values above and below this range represent subprophylactic and supraprophylactic levels, respectively. Weight-based enoxaparin administration was superior to fixed dose in achieving anti-Xa prophylactic range. It is unknown; however, which enoxaparin weight-based administration is superior - by using once daily weight-categories or 1 mg/kg body weight. Objective: To compare the efficacy in reaching prophylcatic anti-Xa levels and adverse effects profile of the two weight-based enoxaparin dosing protocols.