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PubMed1986

Vertigo-reducing effect of ginger root. A controlled clinical study.

The effect of powdered ginger root (Zingiber officinale) upon vertigo and nystagmus following caloric stimulation of the vestibular system was studied in 8 healthy volunteers in a double-blind crossover placebo trial. The results reported are based upon 48 vertigo scores and 48 electronystagmograms. Ginger root reduced the induced vertigo significantly better than did placebo. There was no statistically significant action upon the duration or the maximum slow phase velocity of nystagmus.

Adolescent↗
PubMed2003

Ginger does not prevent postoperative nausea and vomiting after laparoscopic surgery.

IMPLICATIONS: The potential antiemetic effect of two different oral doses of the herbal remedy ginger (Zingiber officinale) to prevent postoperative nausea and vomiting in 180 patients undergoing gynecologic laparoscopy was investigated in this randomized, double-blinded trial. Ginger failed to reduce the incidence of postoperative nausea and vomiting after these procedures.

Adult↗
PubMed1990

Gastrointestinal motility enhancing effect of ginger and its active constituents.

The effect of ginger root (Zingiberis Rhizoma) on gastrointestinal motility was examined based on its ability to enhance charcoal meal transport in mice. Oral administrations of the acetone extract of ginger (which contains volatile oils and bitter substances) at 75 mg/kg, [6]-shogaol at 2.5 mg/kg, or a [6]-, [8]- or [10]-gingerol at 5 mg/kg enhanced the transport of a charcoal meal. The effects of these substances were similar to or slightly weaker than those of metoclopramide and donperidone.

Animals↗
PubMed1991

Anti-5-hydroxytryptamine3 effect of galanolactone, diterpenoid isolated from ginger.

It has been reported that an acetone extract of ginger and its fractions have anti-5-HT (5-hydroxytryptamine; serotonin) effects. In the present study, guinea pig ileum, rat stomach fundus and rabbit aortic strips are used in order to determine the constituents of fraction 2 which are responsible for anti-5-HT effect and to examine their pharmacological properties. The analysis of fraction 2-3 indicated that galanolactone, a diterpenoid, is one of the active constituents. In guinea pig ileum, galanolactone inhibited contractile responses to 5-HT with a pIC50 value 4.93. pIC50 value of galanolactone against the response to 2-methyl-5-HT, a selective 5-HT3 agonist, in the presence of methysergide at 1 x 10(-5) M was 5.10. pIC50 values of ICS 205-930, a selective 5-HT3 antagonist, were 5.30 and 7.49, respectively. The concentration-response curve of 5-HT was shown as a biphasic curve and galanolactone caused a selective shift to the right of the second phase. In the same preparations, the pIC50 value of galanolactone and ICS 205-930 against the response to carbamylcholine (CCh) was 4.45 and 4.46. The inhibitory effect of galanolactone on the 5-HT response in the stomach fundus and aortic strips was less than that in the ileum. In addition, in the thoracic aorta precontracted with 50 mM K+, the relaxing effect of galanolactone was about 1/10 of that of papaverine. These results suggest that the anti-5-HT effect of galanolactone, a diterpenoid isolated from ginger, is related to antagonism of 5-HT3 receptors.

Animals↗
PubMed2000

Interactions of warfarin with garlic, ginger, ginkgo, or ginseng: nature of the evidence.

OBJECTIVE: To review and characterize the evidence describing potential interactions between warfarin and garlic, ginger, ginkgo, or ginseng. DATA SOURCES: Searches of MEDLINE (1966-1999), other bibliographic databases, several abstracting services, and tertiary references were conducted. STUDY SELECTION AND DATA EXTRACTION: Articles were examined by each author, and additional citations were obtained from the references of these articles. Preference was given to Englishlanguage articles of human studies. DATA SYNTHESIS: Evidence is lacking for an interaction of warfarin wth galic or ginger. One case report associates ginseng use with decreased warfarin-maintained anticoagulation effect. Another case report links concomitant use of ginkgo and warfarin with the development of intracerebral hemorrhage. Hemorrhage and tendencies were noted in four cases with ginkgo use and in three cases with garlic; in none of these cases were patients receiving warfarin. CONCLUSIONS: The true risks of these interactions and effects are difficult to characterize due to the limited number and nature of existing reports.

Anticoagulants↗
PubMed1988

Comparison of efficacy of ginger with various antimotion sickness drugs.

UNLABELLED: Ginger and several other medications were compared with scopolamine and d-amphetamine for effectiveness in prevention of motion sickness. METHODS: Double-blind techniques were used. The subjects were given the medications two hours before they were rotated in a chair making head movements until a symptom total short of vomiting was reached. Standardized N.A.S.A. techniques were used for speed of rotation and end-point of motion sickness. RESULTS: The three doses of ginger were all at the placebo level of efficacy. Amitriptyline, ethopropazine and trihexyphenidyl increased the tolerated head movements but the increase was not statistically significant. Significant levels of protection were produced by dimenhydrinate, promethazine, scopolamine and d-amphetamine. Protection was further increased by combination of these latter drugs with d-amphetamine. Efficacy was greatest as the dose was increased. CONCLUSIONS: The medication of choice in this study was scopolamine 0.6 mg with d-amphetamine 10 mg. This combination provided good protection with acceptable side effects.

Administration, Oral↗
PubMed2001

Ginger, fat and fibrinolysis.

Administration of 50 gm of fat to 30 healthy adult volunteers decreased fibrinolytic activity from a mean of 64.20 +/- 5.31 to 52.10 +/- 3.20 units (P < 0.001). Supplementation of 5 gm of ginger powder with fatty meal not only prevented the fall in fibrinolytic activity but actually increased it significantly (P < 0.001). This fibrinolytic enhancing property is a further addition to the therapeutic potential of ginger.

Adult↗
PubMed2005

[Isolation and identification of a Streptomyces strain against ginger bacterial wilt caused by Pseudomonas solanacearum Smith].

Streptomyces SR-11 was isolated from the soil of ginger in Sichuan Province against ginger bacterial wilt caused by Pseudomonas solanacearum Smith. It had distinctively inhibitive effect on gram-positive bacterium, gram-negative bacterium and some kinds of pathogenic fungi. It's morphological, cultural physiological, biochemical characteristics, chemotaxonomy and 16S rDNA sequences analysis were studied. The substrate mycelium have no partition, the aerial mycelium are ramose; The spore-bearing filaments are spiral, the spores are oval and the surface are smooth. Cell wall type I, Sugar type C. When SR-11 is matured, the aerial mycelium are gray and the strain can give out an earthy smell. A phylogenetic tree was constructed by comparing with the published 16S rDNA sequences of the related bacteria species. In the phylogenetic tree the overall similarity value between strain SR-11 and 12 type Streptomyces sp are 96.5-98.3%.

DNA, Bacterial↗
PubMed2005

[Studies of commonly used traditional medicine-ginger].

To review the chemical, pharmacological, studies on ginger (Zingiber officinale) in the last ten years, and also its processing history and clinical uses. Gingerols and related compounds in ginger have many pharmacological activities. Chemical studies should be given sufficiently emphasis, and advances of the chemical study will promote the other related researches to develop in depth.

Animals↗
PubMed1995

Zingiber officinale (ginger) used to prevent 8-Mop associated nausea.

Patients undergoing photopheresis are required to ingest the drug 8-MOP as part of their treatment. This drug causes nausea as a side effect. Ginger taken prior to 8-MOP may substantially reduce this side effect. This study compared patients' nausea when taking 8-MOP with and without ginger.

Adult↗
PubMed1994

[The effect of Pinellia processed by ginger juice on gastric and intestinal function of animals].

The experimental research has shown that neither pinellia processed by ginger juice and alum nor pinellia boiled by ginger juice have any marked influence on the secretion of PGE2 in rat gastric juice, or on the activity of gastric proteinase in rats. Both the processed products of pinellia can obviously inhibit the gastric and intestinal motility in mice. Raw pinellia can strongly inhibit the secretion of PGE2, gastric acidity and gastric proteinase in rats, but acts not so heavily on their gastric secretion and appears rather harmful to the gastric mucosa in rats. Raw pinellia can also obviously accelerate the gastric and intestinal motility in rats.

Animals↗
PubMed2026

Discovery of the Underlying Mechanism of Ginger Juice Processed Ziziphi Spinosae Semen for Its Sedative-Hypnotic Effect on Insomnia Mice via Regulation of HPA Axis and cAMP/PKA Signaling Pathway.

Based on Traditional Chinese Medicine (TCM) theory, the efficacy and mechanism of Ginger juice processed Ziziphi Spinosae Semen (GJPZSS) for treating insomnia, particularly stress-related types, were investigated to provide empirical evidence. An insomnia model was induced in mice by DL-4-chlorophenylalanine (PCPA) and chronic tail clamping. The sedative effect was evaluated by behavioral tests. Serum components from GJPZSS were analyzed by UHPLC-Q-TOF-MS/MS, and 64 potential targets were identified. The cAMP signaling pathway was enriched as the core pathway by Kyoto Encyclopedia of genes and genomes (KEGG) analysis and was validated by molecular docking. GJPZSS was demonstrated to prolong sleep time, reduce immobility time, increase 5-hydroxytryptamine (5-HT) and gamma-aminobutyric acid (GABA) levels, decrease hypothalamic-pituitary-adrenal (HPA) axis levels, and suppress neuronal death. The reduction of the cyclic adenosine monophosphate (cAMP), protein kinase A (PKA), cAMP-response element binding protein (CREB) and brain-derived neurotrophic factor (BDNF) in the brain was also significantly inhibited. It was concluded that the sleep-improving effect of GJPZSS was mediated through the regulation of the HPA axis and the cAMP/PKA/CREB/BDNF signaling pathway.

Animals↗
PubMed1978

Jamaica ginger paralysis. Forty-seven-year follow-up.

In 1930, thousands of Americans were poisoned by an illicit extract of Jamaica ginger ("jake") used to circumvent the Prohibition laws. A neurotoxic organophosphate compound, triorthocresyl phosphate (TOCP), had been used as an adulterant. The earliest reports were of peripheral neuritis, but later it was evident that an upper motor neuron syndrome had supervened. This TOCP poisoning apparently involved various cell groups and tracts in the spinal cord; the lesions was not peripheral at all. We interviewed 11 survivors of the illness residing in eastern Tennessee. Four were carefully examined. The principal findings showed the spasticity and abnormal reflexes of an upper motor neuron syndrome. One patient had mild disease, despite typical findings, and had lived a normal life.

Aged↗
PubMed1991

Effect of cumin, cinnamon, ginger, mustard and tamarind in induced hypercholesterolemic rats.

The effect of a few common spices--cumin (Cuminum cyminum, cinnamon (Cinnamomum zeylanicum), ginger (Zingiber officinale), mustard (Brassica nigra) and tamarind (Tamarindus indica)--added to normal and hypercholesterolemia inducing diet on serum and liver cholesterol levels in rats was studied. These spices did not show any cholesterol lowering effect when included in the diet at about 5-fold the normal human intake level.

Animals↗
PubMed2004

Zerumbone, a sesquiterpene in subtropical ginger, suppresses skin tumor initiation and promotion stages in ICR mice.

We recently showed that zerumbone, a sesquiterpene found in subtropical ginger, suppresses colonic tumor marker formation in rats and induces apoptosis in colon cancer cell lines. In our present study, the anti-tumor initiating and promoting activities of zerumbone in mouse skin were evaluated using a conventional 2-stage carcinogenesis model. A single topical pretreatment to mouse skin (2 micromol) 24 hr before application of dimethylbenz[a]anthracene (0.2 micromol) markedly suppressed tumor incidence by 60% and the number of tumors by 80% per mouse. Repeated pretreatment (16 nmol) twice weekly during the post-initiation phase reduced the number of 12-O-tetradecanoylphorbol-13-acetate (TPA, 1.6 nmol)-induced tumors by 83% as well as their diameter by 57%. Multiple reverse transcriptase (RT) PCR experiments revealed that zerumbone (2 micromol) enhanced the mRNA expression level of manganese superoxide dismutase, glutathione peroxidase-1, glutathione S-transferase-P1 and NAD(P)H quinone oxidoreductase in the epidermis, but not that of cytochrome p450 1A1 or 1B1. Further, it diminished TPA-induced cyclooxygenase-2 protein expression and phosphorylation of extracellular signal-regulated kinase 1/2, while pretreatment(s), in either the priming or activation stage or both, reduced double TPA application-induced hydrogen peroxide formation and edema induction by 29% to 86%, respectively. Histologic examination revealed that pretreatment(s) with zerumbone suppressed leukocyte infiltration and reduced proliferating cell nuclear antigen-labeling indices. Together, our results indicate that zerumbone is a promising agent for the prevention of both tumor initiating and promoting processes, through induction of anti-oxidative and phase II drug metabolizing enzymes as well as attenuation of proinflammatory signaling pathways.

Animals↗