Advances in Nanotechnology for Enhancing the Solubility and Bioavailability of Poorly Soluble Drugs.

This manuscript offers a comprehensive overview of nanotechnology's impact on the solubility and bioavailability of poorly soluble drugs, with a focus on BCS Class II and IV drugs. We explore various nanoscale drug delivery systems (NDDSs), including lipid-based, polymer-based, nanoemulsions, nanogels, and inorganic carriers. These systems offer improved drug efficacy, targeting, and reduced side effects. Emphasizing the crucial role of nanoparticle size and surface modifications, the review discusses the advancements in NDDSs for enhanced therapeutic outcomes. Challenges such as production cost and safety are acknowledged, yet the potential of NDDSs in transforming drug delivery methods is highlighted. This contribution underscores the importance of nanotechnology in pharmaceutical engineering, suggesting it as a significant advancement for medical applications and patient care.

Psoriasis, psoriatic arthritis and increased risk of incident Crohn's disease in US women.

OBJECTIVE: Inflammatory bowel disease (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), shares clinical and immunological features with psoriasis. Genome-wide association studies have found common susceptibility genes. However, epidemiologic data evaluating the association between psoriasis, psoriatic arthritis and risk of IBD are sparse. We aimed to evaluate the association between psoriasis, psoriatic arthritis and incident CD and UC among women in the USA. METHODS: 174 476 women were enrolled in the Nurses' Health Study (NHS) (1996-2008) and NHS II (1991-2007). Lifetime history of physician-diagnosed psoriasis and psoriatic arthritis was confirmed by supplementary questionnaires. Information on CD and UC was obtained by self-reported questionnaires and confirmed by medical record review. RESULTS: We documented 188 incident cases of CD and 240 incident cases of UC during follow-up. Psoriasis was associated with a significantly increased risk of subsequent CD with a multivariate-adjusted relative risk (RR) of 4.00 (95% CI 1.72 to 9.27) for NHS and 3.76 (1.82 to 7.74) for NHS II. By contrast, we did not observe a significant increase in risk of UC associated with psoriasis. In a pooled analysis of both cohorts, women with psoriasis experienced a significantly increased risk of CD (RR, 3.86, 95% CI 2.23 to 6.67), but not UC (RR, 1.17, 95% CI 0.41 to 3.36). The risk of CD was especially pronounced among psoriatics with concomitant psoriatic arthritis (RR, 6.43, 95% CI 2.04 to 20.32). CONCLUSIONS: Psoriasis with concomitant psoriatic arthritis is associated with an increased risk of incident CD.

[Expression and significance of galectin-3 and galectin-9 in mice nasal mucosa with allergic rhinitis].

OBJECTIVE: To evaluate the expression of galectin-3 and galectin-9 in mice nasal mucosa,and to explore the role of galectin-3 and galectin-9 in allergic rhinitis (AR). METHODS: Twenty mice were randomly divided into AR group and control group, 10 mice in each group. Ten mice of BALB/c were sensitized intraperitoneally with 10 microg of ovalbumin(OVA) adsorbed onto 2 mg Al(OH)3 on day 1 and day 14. Mice was induced daily by intranasal daily administration of 10 microl of saline containing 100 microg of OVA from day 21 to day 28. OVA was replaced with saline in control group. Immunohistochemical staining was used to examine the expression of galectin-3 and galectin-9 in nasal mucosa. RT-PCR was performed to investigate the level of mRNA expression of complement galectin-3, galectin-9. The level of IL-4, IL-5 and IFN-gamma in peripheral blood were titrated by ELISA. RESULTS: Galectin-3 and galectin-9 were detected in both groups. Expression of galectin-3 and galectin-9 in group AR was higher than that in control group. Pearson correlation analysis demonstrated that the levels of galectin-3 and galectin-9 were positively correlated with the level of IL-4 and IL-5, but negatively correlated with the level of IFN-gamma. CONCLUSIONS: Galectin-3 and galectin-9 might play an important role in the pathogenesis of allergic rhinitis.