(5-n-Hexyl-2-hydroxymethyl-1,3-dioxan-2-yl)methanol

In the title compound, C12H24O4, the dioxane ring adopts a chair conformation; the n-hexyl chain, which occupies an equatorial position, has an extended zigzag conformation. In the crystal, mol­ecules are connected by O—H⋯O hydrogen-bonds into a zigzag chain running along the b axis, giving rise to a herringbone pattern

Perillartine

The chiral title compound [systematic name: 4-(1-methyl­vinyl)cyclo­hexene-1-carbaldehyde oxime], C10H15NO, crystallizes with two mol­ecules in the asymmetric unit, one of which shows disorder of its propenyl substituent over two sets of sites in a 50:50 ratio. In both mol­ecules, the six-membered carbaldehyde oxime ring adopts an approximate envelope conformation in which the C atom bearing the propenyl substituent represents the flap position. In both mol­ecules, the plane passing through the propenyl substituent is nearly perpendicular to the mean plane of the six-membered ring [dihedral angles = 84.6 (6) and 87.4 (3)°]. In the crystal, the two independent mol­ecules are linked by a pair O—H⋯N hydrogen bonds across a pseudo-inversion centre, generating a dimer. The unit cell of the known racemate of the title compound is similar to the cell found here, but with space group P

(5-n-Heptyl-2-hydroxymethyl-1,3-dioxan-2-yl)methanol

In the title compound, C13H26O4, the dioxane rings adopts a chair conformation; the n-heptyl chain occupies an equatorial position. In the crystal, mol­ecules are connected by O—H⋯O hydrogen bonds into a zigzag chain running along the a axis, giving rise to a herringbone pattern. There are two independent mol­ecules in the asymmetric unit

7,11,18,21-Tetra­oxatrispiro­[5.2.2.5.2.2]heneicosa­ne

The four six-membered rings all adopt chair conformations in the two independent mol­ecules of the title cyclo­hexa­none cyclic diacetal with penta­erythritol, C17H28O4

Evaluation of Influence of Acupuncture and Electro-Acupuncture for Blood Perfusion of Stomach by Laser Doppler Blood Perfusion Imaging

The objective of this study is to observe effects of acupuncture and electro-acupuncture (EA) on blood perfusion in the stomach, and probe into the application of laser Doppler blood perfusion imaging technique in the study of the effect of acupuncture and moxibustion on the entrails. In the acupuncture group of 20 rats, acupuncture was given at “Zusanli” (ST 36) and in EA group of 18 rats, EA was applied at “Zusanli” (ST 36), with 18 rats without acupuncture used as control group. Changes of blood perfusion and microcirculation distribution in the stomach were investigated with laser Doppler blood perfusion imager (LDPI). The laser Doppler blood perfusion image could clearly display changes of blood flow distribution in the stomach before and after acupuncture. After acupuncture or EA was given at “Zusanli” (ST 36), the blood perfusion in the stomach increased significantly, the blood perfusion in the blood vessels and microcirculation of other parts significantly increased, and the maximum increase of the blood perfusion was found at 10 min after acupuncture or EA, with increases of 0.50 _ 0.11 (PU) and 0.66 _ 0.16 (PU), respectively, and the blood perfusion still kept at a higher degree within 10 min after ceasing of the acupuncture or EA. While the blood perfusion in the stomach in the rat of the control group tended to gradual decrease. It has been concluded that both acupuncture and EA can increase blood perfusion in the stomach, the EA having stronger action, and LDPI can display the regulative action of acupuncture on the blood vessel of the stomach by using an image

(Benzoato-κ2 O,O′)(5,5,7,12,12,14-hexa­methyl-1,4,8,11-tetra­azacyclo­tetra­decane-κ4 N,N′,N′′,N′′′)nickel(II) perchlorate monohydrate

The Ni atom in the title salt, [Ni(C7H5O2)(C16H36N4)]ClO4·H2O, is in a six-coordinate octa­hedral geometry. The metal atom is chelated by the carboxyl­ate group, and the macrocyclic ligand adopts a folded configuration. The cation, anion and water mol­ecules engage in hydrogen bonding to form a layer structure