Effect of administration of nanoparticles of human chorionic gonadotropin on testicular hemodynamics, testicular volume, testicular echotexture, and circulating testosterone and nitric oxide in pubescent goat bucks under heat stress conditions.

The current study investigated the effect of a single administration of human chorionic gonadotropin hormone (hCG) and its nanoparticles (NPs) on testicular hemodynamics using Doppler ultrasonography, testicular volume, testicular echotexture (PIX), and circulating testosterone and nitric oxide (NO) in pubescent goat bucks during summer months. Fifteen Baladi goats were divided into three groups (5 in each) and subjected to a single intramuscular administration of one ml of physiological saline ( control group), one ml containing 500 IU of hCG (hCG group) or one ml containing 125 IU of hCG NPs (hCG NPs group). Testicular hemodynamics assessment was done just before administration (0 h), and at 2, 4, 6, 24, and daily till 7 days after administration.

Suppression of mycotoxins production and efficient chelation of heavy metals using natural melanin originated from Aspergillus flavus and Aspergillus carbonarius.

Background: This study employed melanin synthesized by Aspergillus flavus and Aspergillus carbonarius to inhibit the production of mycotoxins and bioremediation of heavy metals (HMs).

Methods: First, twenty fungal isolates were obtained from soil samples, and were evaluated to produce melanin. The melanin of the most potent producers has undergone several confirmatory experiments, including, Dihydroxyphenylalanine (DOPA)-inhibitor-kojic acid pathway detection, High-performance liquid chromatography (HPLC), Fourier-transform infrared (FTIR) and Nuclear magnetic resonance (NMR).

Clinical and radiographic evaluation of silver diamine fluoride versus mineral trioxide aggregate as indirect pulp capping agents in deeply carious first permanent molars a randomized clinical trial.

Aim: Clinical and radiographic evaluation of SDF versus MTA as indirect pulp capping agents in deeply carious first permanent molars.

Methodology: This study was conducted on (30) first permanent molars indicated for indirect pulp capping (IPC) randomly allocated to either SDF or MTA groups (n = 15). The molars were finally restored with glass hybrid glass ionomer restoration.

Navigating the fear: assessing nursing students' concerns and preventive practices in response to Monkeypox in Egypt.

Background: Monkeypox has emerged as a global health concern, necessitating preventive measures and awareness among healthcare students. Understanding nursing students' fears, concerns, and preventive practices regarding Monkeypox can help improve preparedness and response strategies.

Aim: This study aimed to assess the levels of fear, concerns, and preventive practices related to monkeypox among nursing students at Beni Suef University, Egypt, during the 2024-2025 academic year.

Unraveling the power of sense of coherence: a key predictor of symptom severity among depressive disorders clients.

Background: Despite advancements in therapies, the severity of depressive symptoms continues to challenge psychiatric nurses. However, research has indicated that a higher sense of coherence (SOC) can act as a protective factor against the development of diseases and promote faster recovery.

Aim: This study aimed to investigate whether SOC could serve as an indicator of depressive symptom severity among clients with depression.