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isosorbide dinitrate + hydralazine (hydralazine + ISDN / BiDil / ISDN + hydralazine)

✓ Approved

Arbor Pharmaceuticals, LLC · CACNA1C · Small Molecule

What is isosorbide dinitrate + hydralazine?

isosorbide dinitrate + hydralazine is a small molecule developed by Arbor Pharmaceuticals, LLC. It is approved for therapeutic indications via oral (po).

Drug Profile

Brand Nameshydralazine + ISDN, BiDil, ISDN + hydralazine
CompanyArbor Pharmaceuticals, LLC
Drug ClassSmall Molecule
Molecular TargetCACNA1C
RouteOral (PO)
StatusApproved
Sources: ClinicalTrials.gov, Arbor Pharmaceuticals, LLC

Mechanism of Action

Molecular Targets

isosorbide dinitrate + hydralazine acts on 1 molecular target:

CACNA1Ccalcium voltage-gated channel subunit alpha1 C (CACNL1A1, CACNA1C-IT2)
Want deeper analysis?Noah AI can explain complex mechanisms and compare to similar drugs.

Therapeutic Indications

isosorbide dinitrate + hydralazine is developed for 1 unique indication across 1 therapeutic area.

Therapeutic AreaConditionPhase
Cardiac disordersCardiac failure✓ Approved

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Petal infrared transmission warms flowers and reduces microbial abundance.

Williams Jessica N JN, Barker Daniel A DA, Millet Antonia J AJ, Carcache Jonathan M JM et al.

Flowers create distinct internal microclimates, yet how these conditions filter microbial abundance remains poorly understood. We tested whether petal light transmission and internal floral temperature influence microbial abundance in two co-occurring species, Lyonia lucida and Lyonia fruticosa (Ericaceae), which have translucent petal 'windows' that modify internal light environments. We measured internal and external floral temperatures, quantified culturable microbial abundance (yeasts, molds, bacteria), and assessed ultraviolet (UV) and infrared (IR) petal transmission using spectrometry. We then experimentally tested the UV resistance of microbial communities across 108 flowers from 18 plants. Additionally, we used manipulative light experiments to test whether IR radiation drove differences in floral warming between these two species. Petal windows transmitted more UV and IR radiation than pigmented tissue. Internal floral temperature predicted microbial abundance, with warmer flowers harboring fewer microbes. A spectral filter experiment confirmed that IR radiation warms L. lucida flowers but not L. fruticosa, while natural variation in UV transmission did not predict microbial abundance or UV resistance. Petal spectral traits shape floral microclimate and microbial abundance primarily through temperature-mediated filtering linked to IR-driven warming rather than passive UV sterilization. These results position flowers as microhabitats where petal traits constrain microbial communities.

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PubMedLipids in health and disease2026-10-07

Triglyceride-glucose index as a cardiovascular risk marker: updated evidence, limitations, and future perspectives.

Cherska Mariia M, Kukharchuk Khrystyna K, Ceasovschih Alexandr A, Sorodoc Victorita V et al.

Cardiovascular diseases (CVDs) remain the foremost cause of morbidity and mortality worldwide, accounting for a substantial burden on healthcare systems, economies, and society. Traditional risk factors do not fully explain residual cardiovascular risk, highlighting the role of insulin resistance (IR) as a key pathophysiological link between metabolic disorders and CVD. The triglyceride-glucose (TyG) index, a simple surrogate marker derived from fasting triglyceride and glucose levels, has emerged as a practical tool for assessing IR and cardiovascular risk. This review summarizes current evidence on the role of the TyG index in the development, progression, and prognosis of CVD. The TyG index reflects both hepatic and adipose tissue insulin resistance and has shown comparable or superior performance to traditional markers such as homeostatic model assessment of insulin resistance (HOMA-IR) but is easier to calculate and more feasible for routine clinical use. Large epidemiological and cohort studies have consistently demonstrated associations between elevated TyG values and increased risk of type 2 diabetes mellitus, coronary heart disease, myocardial infarction, stroke, peripheral arterial disease, and heart failure in both general and high-risk populations. Evidence suggests a dose-response relationship between TyG and cardiovascular outcomes, with higher TyG levels or adverse longitudinal trajectories conferring greater risk. Importantly, TyG has been linked to subclinical atherosclerosis, coronary microvascular dysfunction, and adverse cardiac remodeling, indicating its relevance in early disease stages. Sex-specific differences have been reported, with several studies showing stronger associations between TyG and cardiovascular risk in women. In addition, TyG has demonstrated prognostic value across diverse clinical settings, including acute and chronic coronary syndromes, myocardial infarction with nonobstructive coronary arteries, and heart failure. Despite these findings, the clinical implementation of the TyG index remains limited. Its incremental value beyond that of established risk models is inconsistent, and its predictive performance varies across populations, age groups, and ethnicities. Most available data are observational, with underrepresentation of non-Asian populations and younger individuals, and standardized clinical cutoff values have not been universally established. In conclusion, the TyG index is a simple, inexpensive, and widely accessible marker of insulin resistance with considerable potential for cardiovascular risk stratification. While current evidence supports its association with incident CVD, atherosclerotic burden, and adverse outcomes, further prospective, multiethnic studies are needed to define optimal thresholds, clarify its role alongside existing risk models, and determine whether TyG-guided strategies can improve clinical outcomes.

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PubMedFrontiers in endocrinology2026-10-07

Longitudinal outcomes associated with structured exercise and dietary and microbiota-targeted care in patients with diabetic sarcopenia: a retrospective cohort study.

Huang Xiaowei X, Duan Jingyu J, Liang Xue X, Li Yuzheng Y et al.

Diabetic sarcopenia is associated with functional impairment and metabolic abnormalities in patients with type 2 diabetes mellitus (T2DM). Real-world evidence regarding structured exercise combined with dietary and microbiota-targeted care remains limited. This retrospective cohort study included 128 patients with T2DM and sarcopenia between January 2022 and December 2024. Based on the treatment received, patients were divided into a control group receiving conventional diabetes management (n = 63) and an intervention group receiving conventional management combined with structured exercise, dietary and microbiota-targeted care (n = 65). Outcomes were assessed at baseline and months 1, 3, 6, 9, and 12. The primary outcome was the longitudinal change in skeletal muscle index (SMI). Secondary outcomes included handgrip strength, gait speed, Short Physical Performance Battery (SPPB) score, glycated hemoglobin A1c (HbA1c), fasting plasma glucose (FPG), and homeostasis model assessment of insulin resistance (HOMA-IR), as well as the incidence of adverse events. Adjusted generalized estimating equation models were used to evaluate longitudinal trajectories. Significant group × time interactions were observed for SMI (P = 0.017), handgrip strength (P < 0.001), gait speed (P < 0.001), and SPPB score (P = 0.015). At month 12, adjusted between-group differences favoring the intervention group were 0.282 kg/m² for SMI (95% CI, 0.177-0.387), 3.348 kg for handgrip strength (95% CI, 2.718-3.983), 0.129 m/s for gait speed (95% CI, 0.109-0.149), and 1.225 points for SPPB score (95% CI, 0.895-1.556; all P < 0.001). Group × time interactions were not significant for HbA1c, HOMA-IR, or FPG. No significant difference in adverse-event incidence was detected (Risk ratio: 1.171; P = 0.478). Structured exercise combined with dietary and microbiota-targeted care was associated with more favorable muscle-related trajectories but not superior overall glycemic control. The observational design precludes causal inference or separation of individual component effects, warranting confirmation in prospective randomized trials.

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PubMedMagnetic resonance (Gottingen, Germany)2026-10-07

Line-narrowing by polychromatic selective spin-locking in NMR.

Wiame Coline C, Loutfi Hadi H, Sheberstov Kirill K, Bodenhausen Geoffrey G

Selective Spin-Locking (SSL) of the magnetisation vectors of selected singlets or multiplets in high-resolution Nuclear Magnetic Resonance (NMR) spectra by mono- or polychromatic selective radio-frequency (RF) irradiation can reduce the line-widths to the limit given by homogeneous T 1 ρ relaxation. The resulting line-narrowing leads to an increase in signal height of spectra of 1H, 19F, 31P or other nuclei that is in principle only limited by the ratio T 1 ρ / T 2 *. At the same time, the scalar interactions that give rise to multiplets are decoupled, thus leading to an additional gain in signal height. The amplification factors allow one to use samples at low concentrations. Common one-dimensional (1D) experiments such as inversion recovery (IR) as well as the excitation and reconversion of Long-Lived States (LLS) by Spin-Lock Induced Crossing (SLIC) can significantly benefit from SSL.

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PubMedOptics express2026-10-07

Surface plasmon polariton propagation length enhancing via second-harmonic generation.

Nabizada Arif A, Bile Alessandro A, Tari Hamed H, Fazio Eugenio E

Surface plasmon polaritons (SPPs) offer promising technological applications due to their ability to confine light to subwavelength scales. To achieve advanced photonic integrations competitive with electronic ones, the ideal would be to work with short wavelengths, in the violet or ultraviolet bands. However, these wavelengths are strongly limited due to the high absorptions of any metal layers necessary to realize SPP waves. This study aims to demonstrate the possibility of extending the propagation distance of short-wavelength SPPs by exploiting the nonlinear mutual interaction with long-propagating signals. We show an IR radiation at 1064 nm coupled as an SPP wave to the interface between a metal layer and a nonlinear crystal, propagating along it. By exploiting the nonlinearities of the substrate, this wave can generate its second harmonics at 532 nm, which is able to run for a distance about 30 times longer than the propagation length of an isolated 532 nm signal.

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PubMedActa chimica Slovenica2026-10-07

Synthesis, crystal structures and antimicrobial activity of dioxidomolybdenum(VI) complexes derived from aroylhydrazones.

Li Zhi-Tong ZT, Wu Xiao-Jie XJ, Wu Qiong Q, Yu Yong-Peng YP et al.

Two new aroylhydrazone compounds (E)-N'-(3-ethoxy-2-hydroxybenzylidene)-3-(trifluoromethyl)benzohydrazide (H2La) and (E)-2-bromo-N'-(3,5-dichloro-2-hydroxybenzylidene)benzohydrazide (H2Lb) were prepared and characterized by 1H NMR spectroscopy. Reaction of the aroylhydrazones with MoO2(acac)2 afforded two new dioxidomolybdenum(VI) complexes with general formula [MoO2L(CH3OH)] (L = La for 1, Lb for 2). The complexes were characterized by IR and UV-Vis spectroscopy. Molecular structures of the aroylhydrazones and two dioxidomolybdenum(VI) complexes were further characterized by single crystal X-ray determination. The aroylhydrazone ligands coordinate to Mo through the phenolate oxygen, imine nitrogen, and enolate oxygen atom. The Mo atom displays a distorted octahedral geometry, with the three donors of the aroylhydrazone ligands and one oxo defining the equatorial plane, and one methanol and the other oxo occupying the axial positions. The effective antimicrobial activity of the compounds against the bacteria strains B. subtilis, S. aureus, E. coli, P. fluorescens and on the fungal strains C. albicans and A. niger was observed.

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