Publications by authors named "Haze A"

Background: Phage therapy offers a promising alternative for treating serious infections, including diabetic foot ulcers (DFUs), through the lytic action of phages. This randomized double-blind study was conducted to evaluate the safety and tolerability of the TP-102 bacteriophage cocktail in patients with DFUs non-infected and infected with Staphylococcus aureus, Pseudomonas aeruginosa, and/or Acinetobacter baumannii.

Methods: Nineteen participants with DFUs were randomized after susceptibility testing.

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Farnesoid X receptor α (FXRα, NR1H4) is a bile acid-activated nuclear receptor that regulates the expression of glycolytic and lipogenic target genes by interacting with the 9-cis-retinoic acid receptor α (RXRα, NR2B1). Along with cofactors, the FXRα proteins reported thus far in humans and rodents have been observed to regulate both isoform (α1-4)- and tissue-specific gene expression profiles to integrate energy balance and metabolism. Here, we studied the biological functions of an FXRα naturally occurring spliced exon 5 isoform (FXRαse5) lacking the second zinc-binding module of the DNA-binding domain.

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Article Synopsis
  • Male fertility can be negatively impacted by exposure to environmental pollutants, with the constitutive androstane receptor (Car) playing a key role that is not fully understood.
  • This study explores how Car signaling affects male fertility using various experimental approaches with mouse models, revealing that inhibiting Car leads to poor sperm quality and increased likelihood of offspring dying in the womb.
  • The findings suggest that Car is essential for maintaining sperm health and fertility, highlighting the need for further research to uncover how environmental toxins affect male reproductive health and future generations.
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This comprehensive review examines the complex interplay between endocrine disrupting chemicals (EDCs) and the development of testicular germ cell tumors (TGCTs). Despite the high cure rates of TGCTs, challenges in diagnosis and treatment remain, necessitating a deeper understanding of the etiology of the disease. Here, we emphasize current knowledge on the role of EDCs as potential risk factors for TGCTs, focusing on pesticides and perfluorinated and polyfluoroalkyl substances (PFAs/PFCs).

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Prostate cancer (PCa) is one of the most common cancers in men. Metastasis is the leading cause of death in prostate cancer patients. One of the crucial processes involved in metastatic spread is the "epithelial-mesenchymal transition" (EMT), which allows cells to acquire the ability to invade distant organs.

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Background: Comminuted fractures of the jaws are complex injuries requiring special attention. In the past, treatment included closed reduction using maxillomandibular fixation. With advancements in technology and fixation systems, open reduction became a prevalent option.

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Aims: Cartilage injuries rarely heal spontaneously and often require surgical intervention, leading to the formation of biomechanically inferior fibrous tissue. This study aimed to evaluate the possible effect of amelogenin on the healing process of a large osteochondral injury (OCI) in a rat model.

Methods: A reproducible large OCI was created in the right leg femoral trochlea of 93 rats.

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Increasing evidence points towards a causal link between exposure to persistent organic pollutants (POPs) with increased incidence and aggressivity of various cancers. Among these POPs, dioxin and PCB-153 are widely found in our environment and represent a significant source of contamination. Dioxin exposure has already been linked to cancer such as non-Hodgkin's lymphoma, but remains to be more extensively investigated in other cancers.

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Background: Diabetic foot infections (DFIs) are frequently polymicrobial, yet the relevance of each isolated pathogen, remains ill-defined. Specifically, the prevalence and pathogenicity of enterococcal DFIs and the impact of targeted antienterococcal treatment remain elusive.

Methods: We collected demographic, clinical, and outcome-related data on patients admitted with DFIs to the Hadassah Medical Center diabetic foot unit between 2014 and 2019.

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Understanding the regulation of the testicular endocrine function leading to testosterone production is a major objective as the alteration of endocrine function is associated with the development of many diseases such as infertility. In the last decades, it has been demonstrated that several endogenous molecules regulate the steroidogenic pathway. Among them, bile acids have recently emerged as local regulators of testicular physiology and particularly endocrine function.

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Aims: Data regarding diabetic foot ulcers in patients after solid organ transplantation, particularly kidney transplantation, are limited. Chronic immunosuppression may be associated with impaired wound healing and a higher risk of amputations. In this study, we characterised the clinical presentation and outcomes of patients after kidney transplantation admitted to the diabetic foot unit, compared to non-kidney-transplant patients.

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Spermatogonial stem cells regenerate and maintain spermatogenesis throughout life, making testis a good model for studying stem cell biology. The effects of chemotherapy on fertility have been well-documented previously. This study investigates how busulfan, an alkylating agent that is often used for chemotherapeutic purposes, affects male fertility.

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Article Synopsis
  • Patients admitted for acute diabetic foot issues from 2014-2018 typically had complex health issues, including a high prevalence of neuropathy and cardiovascular diseases.
  • During hospitalization, over half required some form of amputation, with a notable mortality rate of 24.5% within a year of discharge.
  • Key factors linked to major amputations included older age, history of previous amputations, and specific types of foot ulcers.
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Article Synopsis
  • - The study aimed to identify predictors and outcomes of infections caused by ESBL-producing bacteria in patients with acute diabetic foot infections (DFI) from 2014-2018.
  • - Data from 493 patients revealed that 24.5% had infections with suspected ESBL-producers, who were typically older, had peripheral vascular disease, and higher ulcer severity scores, resulting in increased rates of major amputations.
  • - The findings suggest that ESBL-producing bacteria are common in DFI, particularly among vulnerable patient groups, indicating the need for tailored antibiotic treatment strategies upon hospital admission.
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Spermatogenesis is a process within the testis that leads to the production of spermatozoa. It is based on a population of spermatogonial stem cells, which have the capacity to self-renew and to differentiate throughout life to ensure the functions of reproduction are maintained. Male fertility disorders are responsible for half of the cases of infertility in couples worldwide.

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Mesenchymal stem cells (MSCs) are a potential source of angiogenic factors which may promote wound healing in poorly vascularized diabetic foot ulcers. We demonstrate that MSCs of patients with diabetic foot ulcers seeded on decellularized micro-fragments transcribe and secrete angiogenic factors in amounts comparable to MSCs derived from healthy individuals.

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Purpose: To evaluate the safety and efficacy of an at-home photobiomodulation (PBM) device for the treatment of diabetic foot ulcers (DFUs) in a frail population with severe comorbidities.

Methods: Prospective, randomized, double-blind, sham-controlled pilot study. Patients (age = 63 ± 11 years, male:female 13:7) with insulin-dependent diabetes type 2, neuropathy, peripheral artery disease, significant co-morbidities, and large osteomyelitis-associated DFUs (University of Texas grade ≥ III) were randomized to receive active (n = 10) or sham (n = 10) at-home daily PBM treatments (pulsed near-infrared 808 nm Ga-Al-As laser, 250 mW, 8.

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Chronic inflammation is now a well-known precursor for cancer development. Infectious prostatitis are the most common causes of prostate inflammation, but emerging evidence points the role of metabolic disorders as a potential source of cancer-related inflammation. Although the widely used treatment for prostate cancer based on androgen deprivation therapy (ADT) effectively decreases tumor size, it also causes profound alterations in immune tumor microenvironment within the prostate.

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The incidence of reproductive disorders is constantly increasing and affects 15% of couples, with male's abnormalities diagnosed in almost half of the cases. The male gonads exert two major functions of the testis with the productions of gametes (exocrine function) and of sexual hormones (endocrine function). In the last decades, next to steroid receptors such as estrogen and androgen receptors, the involvement of other members of the nuclear receptor superfamily have been described such as Steroidogenic factor-1 (SF-1), Nerve growth factor IB (NGFIB), Liver-X-Receptorα (LXRα) and Dosage-sensitive sex reversal, adrenal hypoplasia critical region, on chromosome X, gene 1 (DAX-1).

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The hypothalamic-pituitary axis exert a major control over endocrine and exocrine testicular functions. The hypothalamic-pituitary axis corresponds to a cascade with the Gonadotropin Releasing Hormone secreted by the hypothalamus, which stimulates the synthesis and the release of Luteinizing Hormone (LH) and Follicle Stimulating Hormone by the gonadotropic cells of the anterior pituitary. The LH signaling pathway controls the steroidogenic activity of the Leydig cells via the activation of the luteinizing hormone/choriogonadotropin receptor.

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Objective: Previous work has established that the deacetylase sirtuin-1 (SIRT1) is cleaved by cathepsin B in chondrocytes subjected to proinflammatory stress, yielding a stable but inactive N-terminal (NT) polypeptide (75SIRT1) and a C-terminal (CT) fragment. The present work examined if chondrocyte-derived NT-SIRT1 is detected in serum and may serve as an investigative and exploratory biomarker of osteoarthritis (OA).

Methods: We developed a novel ELISA assay to measure the ratio of NT to CT of SIRT1 in the serum of human individuals and mice subjected to post-traumatic OA (PTOA) or age-dependent OA (ADOA).

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Lateral ligament tears, also known as high-grade ankle sprains, are common, debilitating, and usually heal slowly. Ten to thirty percent of patients continue to suffer from chronic pain and ankle instability even after 3 to 9 months. Previously, we showed that the recombinant human amelogenin (rHAM ) induced regeneration of fully transected rat medial collateral ligament, a common proof-of-concept model.

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The bile acid receptor Farnesoid-X-Receptor alpha (FXRα), a member of the nuclear receptor superfamily, is well known for its roles in the enterohepatic tract. In addition, FXRα regulates testicular physiology through the control of both endocrine and exocrine functions. The endocrine function of the Leydig cells is mainly controlled by the hypothalamo-pituitary axis viaLH/chorionic gonadotropin (CG).

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The farnesoid-X-receptorα (FXRα; NR1H4) is one of the main bile acid (BA) receptors. During the last decades, through the use of pharmalogical approaches and transgenic mouse models, it has been demonstrated that the nuclear receptor FXRα controls numerous physiological functions such as glucose or energy metabolisms. It is also involved in the etiology or the development of several pathologies.

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Context: The association of inpatient glucose measurements with amputations in patients admitted with acute diabetic foot has not been described.

Objective: To evaluate the relationship of hyperglycemia, hypoglycemia, and glucose variability during hospitalization with amputations in patients hospitalized with acute diabetic foot.

Design: Retrospective cohort study.

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