Ferrocene-1-carbaldehyde thio­semi­carbazone

The asymmetric unit of the title compound, [Fe(C5H5)(C7H8N3S)], consists of two crystallographically independent mol­ecules, A and B. The cyclo­penta­dienyl (Cp) rings in both mol­ecules adopt an eclipsed conformation and are parallel to each other, forming dihedral angles of 2.5 (3) and 1.1 (3)°, respectively. The mean plane of the semicarbazone group is coplanar with the attached Cp ring in mol­ecule A, whereas it is twisted away in mol­ecule B. In the crystal structure, inter­molecular N—H⋯S hydrogen bonds link the mol­ecules into two-dimensional planes parallel to the ab plane. The structure is further consolidated by C—H⋯π inter­actions

Bis(1-ferrocenylmethyl­idene-4-phenyl­thiosemicarbazidato-κ2 N 1,S)zinc(II) monohydrate

In the title compound, [Fe2Zn(C5H5)2(C13H11N3S)2]·H2O, the ZnII ion is in a distorted tetra­hedral geometry being coordinated by two thio­semicarbazone ligands via N and S atoms. One of the Cp rings is disordered over two positions with occupancies of 0.55 and 0.45. The dihedral angle between the substituted Cp rings is 56.1 (5)° and the two phenyl rings are orientated at a dihedral angle of 41.7 (4)°. In the crystal structure, inter­molecular O—H⋯S, N—H⋯O and C—H⋯N hydrogen bonds link the mol­ecules into chains along the b axis. The structure is further consolidated by O—H⋯π inter­actions

Ferrocene-1-carbaldehyde 4-ethyl­thio­semi­carbazone

The asymmetric unit of title compound, [Fe(C5H5)(C9H12N3S)], contains two crystallographically independent mol­ecules, A and B. The two cyclo­penta­dienyl (Cp) rings are parallel to each other in both mol­ecules, forming dihedral angles of 2.3 (3) and 1.0 (3)°, respectively, and adopt an eclipsed conformation. The mean plane of the semicarbazone group is twisted slightly away from the attached Cp ring in both mol­ecules, the dihedral angles between the mean plane and the Cp ring being 15.3 (2) and 10.8 (2)°. The ethyl group in mol­ecule A is coplanar with the mean plane of the semicarbazone group [C—N—C—C torsion angle = −175.2 (4)°], whereas it is nearly perpendicular in mol­ecule B [C—N—C—C torsion angle = 84.8 (6)°]. In the crystal structure, inter­molecular N—H⋯S hydrogen bonds link the mol­ecules into dimers. These dimers are further linked into chains via inter­molecular C—H⋯S hydrogen bonds. The crystal studied was a non-merohedral twin with a refined ratio of the twin components of 0.265 (2):0.735 (2)

Poly[[aquadi-μ3-malonato-hexaphenyl­ditin(IV)] acetone solvate]

The asymmetric unit of the title polymeric complex, {[Sn2=(C6H5)6(C3H2O4)(H2O)]·C3H6O}n, comprises of two Sn cations, one malonate anion and a non-coordinating acetone solvent mol­ecule. Both crystallographically independent Sn cations are five-coordinated by two O and three C atoms in a distorted trigonal-bipyrimidal geometry. One of the Sn cations is bridged by the malonate units, affording polymeric chains which run along [001]. Weak intra­molecular C—H⋯π inter­actions stabilize the mol­ecular structure. In the crystal structure, adjacent chains are inter­connected by inter­molecular O—H⋯O and C—H⋯O hydrogen bonds into a three-dimensional supra­molecular structure. A weak inter­molecular C—H⋯π inter­action is also observed

Bis(ferrocenecarbaldehyde thio­semi­carbazonato-κ2 N 1,S)zinc

In the title compound, [Fe2Zn(C5H5)2(C7H7N3S)2], the Cp rings of each ferrocene residue have a nearly eclipsed conformation. The two thio­semicarbazone ligands each coordinate the Zn atom in a bidentate mode via the N and S atoms, thereby defining a distorted tetra­hedral environment. N—H⋯S, N—H⋯N, C—H⋯S and C—H⋯N intra- and intermol­ecular inter­actions connect the mol­ecules into a two-dimensional array parallel to (010)

DNA Interactions and Cytotoxicity of the Aryls-Vertexed Zinc(II) Thiosemicarbazone Complex

A new mononuclear zinc complex of N-phenyl-substituted thiophene thiosemicarbazone ligand [Zn(Httsc-N-Ph)2] was synthesized and characterized, and investigated as nuclease mimic. As compared to carboplatin, a much greater activity against HeLa cells is exhibited by [Zn(Httsc-N-Ph)2] which binds to DNA through an intercalation mechanism

Femoral vein pulsatility: a simple tool for venous congestion assessment

Abstract Background Femoral vein Doppler (FVD) is simpler than the VExUS score which is a multimodal scoring system based on combination of IVC diameter, hepatic venous Doppler, portal vein pulsatility and renal vein Doppler, may be useful in assessing right ventricular overload and signs of venous congestion. There is limited data on the relationship between FVD and VExUS score. Results Adult post-cardiac surgery patients were assessed for venous congestion using the VExUS score and FVD. Agreement between VExUS and FVD was studied using Kappa test, sensitivity, specificity, PPV and NPV for VExUS and FVD was calculated keeping CVP as gold standard. In total, 107 patients were enrolled, with a mean age of 55.67 ± 12.76. The accuracy of VExUS and FVD for detecting venous congestion was 80.37 (95% CI of 71.5 to 87.4) and 74.7 (95% CI of 65.4 to 82.6), respectively. The level of agreement between FVD and VExUS was moderate (Kappa value of 0.62, P < 0.001) while the agreement between FVD and CVP was weak (Kappa value of 0.49, P < 0.001). Conclusion FVD has good accuracy for detecting venous congestion and shows moderate agreement with VExUS grading. With potentially easier physical accessibility and a shorter learning curve for novices, it may be a simple and valuable tool for assessing venous congestion

18F-FDG PET/CT as a potential predictor of survival in patient with oesophageal cancer: a preliminary result

Aims: A study was undertaken to investigate the value of pretreatment PET–CT in predicting survival in patients with oesophageal cancer (OC). Methods: Between June 2010 and December 2011, 18 consecutive OC patients median (61.00 ± 12.07 years) with median survival of 7.5 month had a pretreatment PET–CT scan. Staging of the disease was made in accordance to the American Joint Committee on Cancer staging system (7th edition) and grouped as stage I–IIA and stage IIB–IV. Maximum standardized uptake value (SUVmax), size of a primary tumour and the presence of fluorodeoxyglucose (FDG)-avid lymph nodes were evaluated for all patients. Survival was analysed using the Kaplan–Meier product limit method and Cox proportional hazards regression model. Results: PET–CT stages I–IIA and IIB–IV had a 1-year survival of 50% and 25%, respectively. Patient with size of primary tumour (4.5 cm). Multivariate Cox regression analysis showed that SUVmax of >5.5 in the primary tumour [hazard ratio (HR) 23.017; 95% confidence interval, p = 0.038] and the presence of FDG-avid lymph node (HR 1.248; p = 0.028) were strongly predictive of poor overall survival on multivariate analysis. Conclusion: Pretreatment 18F-FDG PET–CT SUVmax of a primary tumour and the presence of FDG-avid lymph nodes independently predict survival in patients with oesophageal carcinoma which may potentially be used as surrogate markers for prognostic and therapeutic purposes

A new thio-Schiff base fluorophore with copper ion sensing, DNA binding and nuclease activity

Copper ion recognition and DNA interaction of a newly synthesized fluorescent Schiff base (HPyETSC) were investigated using UV-vis and fluorescent spectroscopy. Examination using these two techniques revealed that the detection of copper by HPyETSC is highly sensitive and selective, with a detection limit of 0.39 μm and the mode of interaction between HPyETSC and DNA is electrostatic, with a binding constant of 8.97 × 104 M-1. Furthermore, gel electrophoresis studies showed that HPyETSC exhibited nuclease activity through oxidative pathway

HEPATOPROTECTIVE ACTIVITY OF LEAF OF METHANOL EXTRACT OF LAURUS NOBILIS.L AGAINST PARACETAMOL INDUCED HEPATOTOXICITY IN RATS

Objective: The present study was conducted to evaluate the hepatoprotective activity of methanol extract of Laurus nobilis against paracetamol induced liver damage in rats.Materials and Methods: The methanol extract of Laurus nobilis (200 mg/kg &amp; 400 mg/kg) was administered orally to the animals with hepatotoxicity induced by paracetamol (400 mg/kg). Silymarin (25mg/kg) was given as reference standard. All the test drugs were administered orally by suspending in 0.5% Carboxy methyl cellulose solution.Results: Paracetamol has enhanced the levels of ALT, AST, ALP and bilirubin, whereas the group receiving high dose (400 mg/kg body weight) methanol extract of Laurus nobilis was effective in protecting the liver against the injury induced by paracetamol in rats than that of  low dose (200mg/kg body weight) treated group. This was evident from a significant reduction in serum enzymes alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) and bilirubin.Conclusion: It was concluded from the result that the methanol extract of Laurus nobilis acts on the liver as a potent scavenger of free radicals to prevent the toxic effects of paracetamol induced hepatotoxicity in rats.Keywords: Laurus nobilis, ALT, AST, ALP, hepatotoxicity