Recombinant human growth hormone (rhGH) administration stimulate the secretion of the brain insulin-like growth factor-1 (IGF-1) concentration and IGF-1 is a pleiotropic neurotropic peptide to exert beneficial effect for the injured brain tissues. Citicoline (cytidine-59-diphosphocholine; CDP-choline) is well known to improve neurological outcome in acute stroke. This study aimed to evaluate whether rhGH can potentiate citicoline effect on functional recovery in acute stroke patient. Thirty patients were enrolled. Ten patients were treated with rhGH subcutaneous injection for 6 months on top of citicoline for 6 weeks (GH6 group), and 10 patients for 3 months (GH3 group) with 6 weeks of citicoline treatment as well, and final 10 patients only with citicoline (control group). Functional outcome was determined by Korean modified Barthel Index (K-MBI) and modified Rankin Scale (mRS) at baseline and 6 months after treatment. Seven and 4 patients withdrew from GH6 and GH3 group, respectively. Final 3 patients in GH6 group, 6 patients in GH3 group and 10 patients in control group were analyzed. The K-MBI, and mRS scores from all 3 groups increased in 6 months compared to baseline in intra-group comparison. In inter-group comparison, however, GH6 but not GH3 showed statistically significant improvement compared to control. Administration of rhGH for 6 months on top of 6-week citicoline treatment resulted in further improvement in K-MBI and mRS in acute stroke patients. Further studies in increasing injection dose or injection period is needed.
Brain ; Cytidine Diphosphate Choline ; Human Growth Hormone* ; Humans* ; Injections, Subcutaneous ; Insulin-Like Growth Factor I ; Stroke*

BACKGROUND AND PURPOSE: Cerebral white matter (WM) lesions are frequently observed in human cerebrovascular diseases, and are believed to be responsible for cognitive impairment. Various neuroprotective agents can suppress this type of WM or neuronal damage. In this study, we investigated whether citicoline, a drug used to treat acute ischemic stroke, can attenuate WM lesions and cognitive decline caused by chronic hypoperfusion in the rat. METHODS: Animals were divided into immediate- and delayed-treatment groups. Those in the immediate-treatment group received a sham operation, citicoline (500 mg/kg/day), or phosphate buffered saline (PBS) treatment. Citicoline or PBS was administered intraperitoneally for 21 days after occluding the bilateral common carotid arteries. Rats in the delayed-treatment group were intraperitoneally administered with either 500 mg/kg/day citicoline or PBS for 21 days beginning on the 8th day after the operation. From the 17th day of administration, the rats were placed in an eight-arm radial maze to examine their cognitive abilities. After completing the administration, tissues were isolated for Kluver-Barrera and the terminal deoxynucleotidyl transferase biotin-dUTP nick end labelling (TUNEL) staining. RESULTS: In the immediate-treatment group, cognitive functions were preserved in the citicoline-treated group, and WM damage and TUNEL-positive cells differed significantly between the citicoline- and PBS-treated animals. In the delayed-treatment group, there was no decrease in WM damage and TUNEL-positive cells, but cognitive improvement was evident for citicoline treatment relative to PBS treatment. CONCLUSIONS: These results show that citicoline can prevent WM damage and aid cognitive improvement, even after a certain extent of disease progression. Citicoline might be useful in patients with acute ischemic stroke as well as in chronic stroke accompanied with cognitive impairment.
Animals ; Carotid Artery, Common ; Cytidine Diphosphate Choline ; Disease Progression ; DNA Nucleotidylexotransferase ; Humans ; Neurons ; Neuroprotective Agents ; Rats ; Salicylamides ; Stroke

The status of DNA synthesis and the effect of UV radiation on the DNA synthesis were studied in mouse skin by microautoradiography. Mice exposed to 100mJ/cm of UVB were injected intradermally with tritiated thymidine, 5 minutes, 2, 6 and 24 hours after irradiation and biopsies were processed for light microscopic autoradiography, A total of 25 ICR female albino haired mice were used as subjects. We compared heavily labeled cells(>10 grains/nucleus) and sparsely labeled cells (3-10 grains/nucleus) in UVL irradiated skin with nonirradiated control skin. 1. Within 5 minutes after UVL exposure an apparent depression in the number of heavily labeled cells occurred. This reduction was statistically significant and remained so for at least six hours post,irradiation. By 24 hours after UVL exposure, the reduction was recovered to nearly control level. 2. By five minutes after UVL exposure, sparsely labeled cells were observed in basal cell layer and differentiated cell layer. The nurriber of sparsely labeled cells appeared highest at five minutes after UVL exposure and then tended to fall to nearly control level at 24 hours. This aberrant type of TdR H incorporation is thought to represent unscheduled DNA synthesis to repair pyrimidine dimers formed in UVL injured DNA molecules,
Animals ; Autoradiography* ; Biopsy ; Depression ; DNA* ; Female ; Hair ; Humans ; Mice* ; Pyrimidine Dimers ; Skin* ; Thymidine ; Ultraviolet Rays

OBJECTIVETo assess the clinical efficacy of the therapeutic schema for treatment of diabetic peripheral neuropathy (DPN) with ligustrazine and citicoline injection in combination.

METHODSAdopting double-centered randomized controlled trial, 300 patients were randomly assigned to 3 groups, who were treated respectively by ligustrazine plus citicoline (group A), ligustrazine alone (group B) and citicoline alone (group C). Clinical efficacy, symptomatic integral (SI), electromyogram ( EMG), blood sugar and blood lipids were assessed 4 weeks after treatment, and the clinical efficacy and SI were assessed at the end of 3-month follow-up.

RESULTSAfter 4-week treatment, improvements of blood sugar and blood lipids were seen in all the three groups, showing insignificant difference among them (P > 0.05). But the clinical efficacy, improvement of SI and EMG in group A were superior to those in group B and C (P < 0.05), while the difference between group B and C was insignificant. No severe adverse reaction was found. Results at the end of 3-month follow-up showed that the clinical efficacy in group A was still better than in the other two groups, so did the SI (6.39 +/- 2.04 vs 8.36 +/- 1.17 and 8.05 +/- 1.34, P < 0.05).

CONCLUSIONThe therapeutic schema of using ligustrazine and citicoline in combination is effective and safe for improving DPN, and worthy of clinical spreading.

Adolescent ; Adult ; Aged ; Cytidine Diphosphate Choline ; therapeutic use ; Diabetic Neuropathies ; drug therapy ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Young Adult

PURPOSE: To examine whether citicoline has a neuroprotective effect on kainic acid (KA) -induced retinal damage. METHODS: KA (6 nmol) was injected into the vitreous of rat eyes. Citicoline (500mg/kg, i.p.) was administered to the rats once before and twice a day after KA-injection for 3- and 7-day intervals. The neuroprotective effects of citicoline were estimated by measuring the thickness of the various retinal layers using hematoxylin-eosin (H and E) staining. In addition, immunohistochemistry was conducted to elucidate the expression of endothelial nitric oxide synthase (eNOS) and neuronal nitric oxide synthase (nNOS). RESULTS: Morphometric analysis of retinal damage in KA-injected eyes showed significant cell loss in the inner nuclear layer (INL) and inner plexiform layer (IPL) of the retinas at 3 and 7 days after KA injection, but not in the outer nuclear layer (ONL). At 3 days after citicoline treatment, no significant changes were detected in the retinal thickness and immunoreactivities of eNOS and nNOS. The immunoreactivities of eNOS and nNOS increased in the retina at 7 days after the KA injection. However, prolonged treatment for 7 days significantly attenuated the immunoreactivities and the reduction of thickness. CONCLUSIONS: The results indicate that citicoline has a neuroprotective effect on KA-induced neurotoxicity in the retina.
Retina/*drug effects/*pathology ; Rats, Sprague-Dawley ; Rats ; Neurotoxins/*pharmacology ; Neuroprotective Agents/*pharmacology ; Male ; Kainic Acid/*pharmacology ; Cytidine Diphosphate Choline/*pharmacology ; Animals

In this study, an ultra-performance liquid chromatography-quadrupole time-of-flight high resolution mass spectrometer(UPLC-Q-TOF-HRMS) was used to investigate the effects of the active ingredients in Periploca forrestii compound on spleen metabolism in rats with collagen-induced arthritis(CIA), and its potential anti-inflammatory mechanism was analyzed by network pharmacology. After the model of CIA was successfully established, the spleen tissues of rats were taken 28 days after administration. UPLC-Q-TOF-HRMS chromatograms were collected and analyzed by principal component analysis(PCA), orthogonal partial least squares discriminant analysis(OPLS-DA), and MetPA. The results showed that as compared with the blank control group, 22 biomarkers in the spleen tissues such as inosine, citicoline, hypoxanthine, and taurine in the model group increased, while 9 biomarkers such as CDP-ethanolamine and phosphorylcholine decreased. As compared with the model group, 21 biomarkers such as inosine, citicoline, CDP-ethanolamine, and phosphorylcholine were reregulated by the active ingredients in P. forrestii. Seventeen metabolic pathways were significantly enriched, including purine metabolism, taurine and hypotaurine metabolism, glycerophospholipid metabolism, and cysteine and methionine metabolism. Network pharmacology analysis found that purine metabolism, glycerophospholipid metabolism, and cysteine and methionine metabolism played important roles in the pathological process of rheumatoid arthritis. This study suggests that active ingredients in P. forrestii compound can delay the occurrence and development of inflammatory reaction by improving the spleen metabolic disorder of rats with CIA. The P. forrestii compound has multi-target and multi-pathway anti-inflammatory mechanism. This study is expected to provide a new explanation for the mechanism of active ingredients in P. forrestii compound against rheumatoid arthritis.
Rats ; Animals ; Periploca ; Cysteine ; Cytidine Diphosphate Choline ; Network Pharmacology ; Phosphorylcholine ; Metabolomics ; Arthritis, Rheumatoid/drug therapy* ; Biomarkers ; Glycerophospholipids ; Methionine ; Purines ; Chromatography, High Pressure Liquid

OBJECTIVETo investigate the effects of citicoline on spatial learning and memory of rats after focal cerebral ischemia.

METHODSThe rats were randomly divided into sham-operation group, ischemia control group and citicoline group. In the later two groups, focal cerebral ischemia model was established by introducing an intraluminal filament into the left middle cerebral artery, and citicoline (500 mg/kg) or 0.9% NaCl was administered intraperitoneally once a day for 2 weeks after the operation. The rats in the sham-operation group were not subjected to middle cerebral artery occlusion (MCAO) with intraluminal filament. The spatial learning and memory functions of the rats were evaluated by Morris water maze test 15 days after MCAO for 5 days.

RESULTSThe rats in ischemia control group exhibited serious spatial learning and memory deficits in both place navigation test and spatial probe test. In the former test, the mean escape latency of citicoline-treated rats were significantly shorter than that of ischemia control rats (P<0.01), and in the latter test significant diffidence was noted between citicoline and ischemia control groups in the percentage time spent in the former platform quadrant and frequency of crossing the former platform (P<0.05).

CONCLUSIONCiticoline can improve the spatial learning and memory function of rats after focal cerebral ischemia.

Animals ; Avoidance Learning ; drug effects ; Cytidine Diphosphate Choline ; pharmacology ; Infarction, Middle Cerebral Artery ; physiopathology ; Male ; Maze Learning ; drug effects ; Nootropic Agents ; pharmacology ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Spatial Behavior ; drug effects

This study was to evaluate the efficacy and safety of early application of citicoline in the treatment of patients with acute stroke by meta-analysis. Randomized controlled trials published until May 2015 were electronically searched in MEDLINE, Embase, the Cochrane Central Register of Controlled Trials, WHO International Clinical Trial Registration Platform, Clinical Trial.gov, and China Biology Medicine disc. Two reviewers independently screened the articles and extracted the data based on the inclusion and exclusion criteria. The quality of included articles was evaluated by using Revman5.0, and meta-analysis was performed. The results showed that 1027 articles were obtained in initial retrieval, and finally 7 articles, involving a total of 4039 cases, were included for analysis. The meta-analysis showed that no significant differences were found in the long-term mortality (OR=0.91, 95% CI 0.07 to 1.09, P=0.30), the rate of dependency (OR=1.02, 95% CI 0.87 to 1.24, P=0.85), and the effective rate (OR=0.98, 95% CI 0.84 to 1.14, P=0.82) between citicoline group and control group. The overall rate of adverse events in citicoline group was not significantly different from that in control group (P=0.30). The quality of included articles reached moderate-low level. In conclusion, citicolne cannot reduce long-term mortality and dependence rate in the treatment of acute stroke, and the effective rate of citivoline may be not better than that of controls but with reliable safety.
Aged ; Cytidine Diphosphate Choline ; administration & dosage ; adverse effects ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Nootropic Agents ; administration & dosage ; adverse effects ; therapeutic use ; Randomized Controlled Trials as Topic ; Stroke ; drug therapy

No abstract available.
Hepatitis C, Chronic ; Renal Insufficiency, Chronic* ; Sofosbuvir*

With PVA as the carrier, the frozen beer yeast cells were immobilized for production of CTP from CMP. we explored the optimal condition of the immobilization from the aspects of the type, concentration of the PVA, and the immobilizing methods of cells In all 8 continuous batch of fermentation under the reactional condition of the immobilized cells, the conversion rate of CTP were maintained about 85% - 95%. Moreever, the storage stability of immobilized cells were investigated, and the products was also isolated and identifided by HPLC.
Beer ; microbiology ; Bioreactors ; microbiology ; Cells, Immobilized ; cytology ; metabolism ; Chromatography, High Pressure Liquid ; Cytidine Monophosphate ; metabolism ; Cytidine Triphosphate ; metabolism ; Fermentation ; Industrial Microbiology ; methods ; Polyvinyl Alcohol ; Saccharomyces cerevisiae ; cytology ; metabolism