Animals ; Brain ; metabolism ; Brain Ischemia ; metabolism ; Excitatory Amino Acids ; metabolism ; Female ; Male ; Panax ; chemistry ; Random Allocation ; Rats ; Rats, Wistar ; Reperfusion Injury ; prevention & control ; Saponins ; isolation & purification ; pharmacology

Animals ; Antioxidants ; pharmacology ; Female ; Hypoxia ; physiopathology ; Male ; Mice ; Panax ; chemistry ; Random Allocation ; Reperfusion Injury ; prevention & control ; Saponins ; isolation & purification ; pharmacology

Animals ; Antioxidants ; pharmacology ; Brain ; metabolism ; Brain Ischemia ; metabolism ; Male ; Malondialdehyde ; metabolism ; Panax ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; metabolism ; Saponins ; pharmacology ; Superoxide Dismutase ; metabolism

Acclimatization ; physiology ; Adolescent ; Altitude ; Humans ; Male ; Nitric Oxide ; blood ; Nitric Oxide Synthase ; blood ; Oxygen ; physiology ; Pulmonary Gas Exchange ; Young Adult

Objective To observe the effects of Wendan decoction (WD) on depression-like behavior in a rat model of Parkinson's disease (PD) and explore the related mechanism.Methods Rodent model of PD was established by unilaterally lesioning medial forebrain bundle with 6-hydrodopamine.After intragastric administration with WD,the rats's behavior changes were detected by the open field test,sucrose preference test and forced swimming test;the contents of monoamine neurotransmitters in the rat brain were assessed by high-performance liquid chromatography with electrochemical detection.Results Compared with those of sham-operated rats,the horizontal and vertical activities of the PD model rats decreased significantly,and sucrose consumption decreased significantly,but immobility time during forced swimming was significantly prolonged.The contents of dopamine (DA),5-hydroxytryptamine (5-HT) and noradrenaline (NA) in the medial prefrontal cortex (mPFC) and DA in the striatum decreased significantly.After administration of WD for 2 weeks,the immobility time of the PD model rats was significantly decreased,sucrose consumption increased significantly;DA,5-HT and NA levels in the mPFC increased significantly.Conclusion WD improves the depression-like behavior in PD model rats,and the mechanisms may involve the regulation of monoamine neurotransmitters in mPFC.

AIMTo study the absorption of zedoary oil in intestine of rat.

METHODSIn situ single pass perfusion model was used and the concentrations of three components in perfusate were determined by HPLC in combination with diode array detection.

RESULTSThe P(app) s of curcumol, curdione and germacrone were all low and had no significant difference (P > 0.05) at zedoary oil concentration of 0.4, 0.8 and 1.2 mg x mL(-1) in transmucosal fluid or in four different regions of intestine of rat [duodenum, jejunum, ileum, colon]. The absorption rates of germacrone and curdione were faster than curcumol's in this study.

CONCLUSIONThe zedoary oil concentration in transmucosal fluid had no significant effect on the P(app) s within the scope of 0.4-1.2 mg x mL(-1). The absorption of curcumol, curdione and germacrone showed the passive diffusion process, and didn't contain a special absorption window.

Animals ; Biological Transport ; Colon ; metabolism ; Curcuma ; chemistry ; Duodenum ; metabolism ; Ileum ; metabolism ; In Vitro Techniques ; Intestinal Absorption ; Jejunum ; metabolism ; Male ; Perfusion ; Plant Oils ; chemistry ; isolation & purification ; pharmacokinetics ; Plants, Medicinal ; chemistry ; Rats ; Rats, Wistar ; Sesquiterpenes ; isolation & purification ; pharmacokinetics ; Sesquiterpenes, Germacrane ; isolation & purification ; pharmacokinetics

OBJECTIVETo evaluate the different effect on the expression of Calcitonin gene related peptide (CGRP)and neuropeptide Y (NPY) between tissue engineered bone with vascular bundle graft in vivo and that with sensory nerve tract graft in vivo.

METHODThirty-six healthy New Zealand rabbits were divided into 3 groups randomly and equally: vascular bundle group (A), sensory nerve tract group (B), tissue-engineering group (C). Group A segmental bone defect of 1.5 cm long was made at the right femur in each animal. After plate fixation, the defects were implanted respectively with the engineered bone prepared in the above-mentioned 3 methods. At 3, 6 and 12 months post-operatively, the distribution of CGRP and NPY in the new bone were detected by immunohistochemistry and analyzed semi-quantitatively by image analysis software.

RESULTSCGRP and NPY immuno-histochemical results indicated their contents increased significantly in all 3 groups as time passed (P = 0.000). Compared with group B, the contents of CGRP and NPY in group A significantly increased at 3 months (P = 0.000), but there was no statistic difference between them at 6 or 12 months (P > 0.05). The expression of CGRP and NPY in both group A and B were significantly more than that in group C at 3, 6 or 12 months (P = 0.000).

CONCLUSIONImplantation of vascular bundle into tissue-engineered bone can significantly improve the CGRP and NPY contents at early 3 months comparing with Implantation of sensory tract into tissue-engineered bone, but the changes are not significant at 6 or 12 months post-operatively.

Animals ; Blood Vessels ; transplantation ; Bone Substitutes ; Calcitonin Gene-Related Peptide ; metabolism ; Disease Models, Animal ; Femur ; injuries ; Male ; Neuropeptide Y ; metabolism ; Peripheral Nerves ; transplantation ; Rabbits ; Random Allocation ; Tissue Engineering

To review the development and application of powdering technique on oily drug of the traditional Chinese medicine. There have been numerous methods of powdering technique on oily drug, such as preparing complexation, microcapsule, adsorption by adsorbent, solid lipid nanoparticles, etc. And beta-Cyclodextrin complexation is the most usually operated. Powdering techniques have broad prospects in the pharmaceutical field, but more efforts should be made to improve oily drug of the traditional Chinese medicine.
Capsules ; Drugs, Chinese Herbal ; administration & dosage ; Nanotechnology ; Powders ; Technology, Pharmaceutical ; methods ; beta-Cyclodextrins

AIMTo explore the influence of hyperbaric oxygen (HBO) preconditioning on anoxic resistance and anti-weariness at high altitude.

METHODS(1) SOD, MDA, NO, NOS, BLA and BUN of 20 youths living at 3 700 m altitude for half year were tested, then they were divided into group A (n=10, received HBO pretreatment twice) and group B (n=10, received HBO pretreatment 5 times) randomly. They were asked to pedal the EMG-bicycle-ergometer at the second and eighth day, and then the same items were tested. (2) 29 youth who would go to Astronomical Spot (5200 m) were randomly divided into group HBO (n=11, received HBO pretreatment once per day for 2 days at Yecheng (1400 m)) and comparison group (n=10). When they reached I Astronomical Spot, thematic biochemical index were investigated. (3) When 20 youth reached Thirty Milepost Barracks (3700 m) at the second day in their way to Immortal Gulf (5380 m) from Yecheng were randomly divided into group HBO (n=10, received HBO pretreatment once per day for 3 days) and comparison group (n=10). When they reached Immortal Gulf, the thematic biochemical index were investigated.

RESULTS(1) SOD, NO, NOS were increased and BLA, BUN, MDA were decrease in group A compared with that in group B until the eighth day, there was significant difference (P < 0.01). (2) SOD, NO, NOS were increased and BLA, BUN, MDA were decrease in group HBO compared with that in comparison that in group, there was significant difference between groups (P < 0.01, or P < 0.05).

CONCLUSIONHBO could enhance the activity of anti-oxidase and the cleared ability of lactic acid, and the effect of anti-weariness could last for 8 days.

Altitude ; Altitude Sickness ; prevention & control ; Fatigue ; prevention & control ; Humans ; Hyperbaric Oxygenation ; methods ; Hypoxia ; physiopathology ; Ischemic Preconditioning ; methods ; Male ; Oxidative Stress ; drug effects ; physiology ; Superoxide Dismutase ; metabolism ; Young Adult

OBJECTIVETo study clinical effects of one-hole microplate internal fixation for the treatment of collateral ligament injuries of the metacarpophalangeal joint of the thumb combined with fracture.

METHODSTwenty-two patients (16 males, 6 females) with collateral ligament injuries of the metacarpophalangeal joint of the thumb combined fracture were treated with one-hole microplate internal fixation. The age of the patients ranged from 18 to 53 years old with a mean age of 28.5 years old. The duration from injury to surgery ranged from 2 hours to 2 months, and the mean time was 6 days. All the patients had collateral ligament injuries combined with fracture of the metacarpophalangeal joint of the thumb. Thirteen patients had injuries in the right hand and 9 patients had injuries in the left hand. There were 18 cases of closed wound and 4 cases of open wound. Eighteen patients had fresh injuries (< 2 weeks) and 4 had old injuries (> 2 weeks). Sixteen patients had injuries in the ulnar collateral ligament of the thumb combined with fracture, 6 patients had radial collateral ligament injuries of the thumb combined with fracture, 4 cases of which were complicated with injuries of abductor pollicis brevis and the end of the flexor pollicis brevis tender. The size of the avulsed fragment was about 3.0 mm x 4.0 mm to 6.0 mm x 7.0 mm.

RESULTSThe incisions of 22 patients healed by first intention. The follow-up periods ranged from 6 months to 5 years old,with an average of 2.5 years old. The thumb function was evaluated by Saetta and other evaluation criteria, and 20 patients got an excellent result and 2 good.

CONCLUSIONThe application of one-hole microplate internal fixation in treating collateral ligament injuries with fracture of the metacarpophalangeal joint of the thumb is an effective method.

Adolescent ; Adult ; Bone Plates ; Collateral Ligaments ; injuries ; surgery ; Female ; Fracture Fixation, Internal ; methods ; Fractures, Bone ; surgery ; Humans ; Male ; Metacarpophalangeal Joint ; injuries ; surgery ; Middle Aged ; Thumb ; injuries ; surgery ; Young Adult