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At least 181 records · Page 10Linked to original sources

PubMed2001

["Bamboo nodes": a clinical study of 19 cases].

This is an account of 19 cases undergoing surgery for submucosal deposits on the cords of a particular type, 8 of the 19 cases having an auto-immune disorder. The nineteen patients were operated and followed up between December 1986 and December 2001, the main symptom being dysphonia. Stroboscopy demonstrated a yellowish appearance, often transverse, of the middle third of the cord, giving the characteristic appearance of a bamboo node. Suspension microlayngoscopy was performed in all cases. Cordotomy was invariably required. Examination of the case notes of these patients has shown either a pre-existing auto-immune disorder or the development of suggestive pointers in 8 of these female patients. Histological examination necessarily demonstrates the common characteristics of these deposits, and may be able to show features which have predictive value in the absence of known auto-immune pathology.

Adult↗

PubMedDate not supplied

A novel porphyrin photosensitizer from bamboo leaves that induces apoptosis in cancer cell lines.

BACKGROUND: In the screening of new anticancer agents, we found that a methanol extract of bamboo leaves induced rapid apoptosis in the human leukemia CMK-7 cell line. MATERIALS AND METHODS: The active compounds in the extract were isolated by chromatographic methods and their structures were determined by NMR and mass spectroscopy. Apoptosis by the compounds were evaluated in CMK-7 and human colon adenocarcinoma Colo320 DM cells by monitoring the caspase-3 activation and DNA cleavage. RESULTS: The active compounds are 201-hydroxypurpurin-7 delta-lactone ethyl methyl diester (1) and the corresponding methyl phytyl diester (2). The apoptosis by compound 1 (0.3 to 0.1 microM for CMK-7 cells) was enhanced when the culture was briefly irradiated with a fluorescent lamp. This photodynamic induction of apoptosis by compound 1 was much stronger than that by a known photosensitizer, pyropheophorbidemethyl. Compound 2 was a weaker inducer of apoptosis than compound 1, but the apoptosis occurred after light irradiation. CONCLUSION: The 201-hydroxypurpurin-7 delta-lactone esters are promising lead compounds as photosensitizers for photodynamic therapy of cancer.

Adenocarcinoma↗

PubMed1963

DICHLORVOS AS A RESIDUAL FUMIGANT IN MUD, PLYWOOD AND BAMBOO HUTS.

In experiments conducted at Savannah, Ga., dichlorvos dispensers of montan (lignite) wax installed at a rate of six units per 1000 cubic feet (28 m(3)) in huts with mud or bamboo walls and with thatched roofs produced kills of caged Anopheles quadrimaculatus (12 hours' exposure) at or above 95% for 5-6 weeks. The doors, windows, and eaves of the huts were open for maximum ventilation. In a non-ventilated plywood hut, a single dispenser gave effective kills for 7 months but in a non-ventilated mud hut the period was 5 months. Air concentrations of dichlorvos in the mud hut were shown to be definitely lower than those in a plywood hut at the same dosage level.

Animals↗

PubMed2004

[Host plant suitability and reproductive isolation of two Schizotetranychus bambusae populations from the bamboo species Phyllostachys pubescens and Neosinocalamus affini].

Development, survivorship, reproduction and procreation isolation of Schizotetranychus bambusae from the bamboo species Phyllostachys pubescens and Neosinocalamus affinis reared on different host plants were evaluated in laboratory. The results showed that the population of S. bambusae from Phyllostachys pubescens (PhS) failed to complete its life cycle when reared on the leaf of N. affinis. When the population of S. bambusae from N. affinis (NeS) was reared on the leaf of P. pubescens, the survivorship and fecundity decreased. The rm, lambda and Ro were 0.0391, 1.0399 and 2.5542, respectively. At 27 degrees C, when the PhS was reared on P. pubescens, rm, lambda and Ro were 0.1415, 1.1520, and 15.6298, respectively, whereas NeS was reared on N. affinis, rm, lambda, and Ro were 0.0993, 1.1044, and 10.0622, respectively. Reciprocal cross test between PhS and NeS showed tht the two populations could mate, but laid unfertilized eggs that produced male only, indicating the existence of reproductive isolation.

Animals↗

PubMed2006

Botulism from home-canned bamboo shoots--Nan Province, Thailand, March 2006.

On March 15, 2006, multiple persons with symptoms of nausea, vomiting, abdominal pain, and dyspnea visited the emergency department at Baan Luang district hospital in Nan province, Thailand; one person required mechanical ventilation. A team from the Bureau of Epidemiology, Department of Disease Control, Thailand Ministry of Public Health (MOPH) initiated an investigation, in collaboration with the Surveillance and Rapid Response Team from Baan Luang district. This report summarizes the investigation conducted during March 15-26, which determined that the outbreak was caused by foodborne botulism from home-canned bamboo shoots and affected 163 rural villagers who shared a common meal. The last case was identified March 21; no further cases of foodborne botulism have been identified in the region.

Bambusa↗

PubMed2006

[Wuwei Handai yijian (Wuwei Medical Bamboo Slips of the Han Dynasty) as evidential material for exploring the origin of Shang han Za bing Lun (Treatise on cold pathogenic and miscellaneous disease)].

Since there are only very few Chinese medical literature in the Han and preceding dynasties extant, it is very difficult to investigate the origins of both the herbs and formulas in the book Shanghan Zabing Lun (Treatise on Cold Pathogenic and Miscellaneous Disease) and the status of that of the contemporary period. The Chinese medical bamboo slips of the Han dynasty unearthed from the tombs in Wuwei, Gansu Province in 1972, had been speculated by archeologists to be a medical literature written in the early period of the Eastern Han Dynasty, or, 150 years earlier than the time Zhang Zhongjing's book written at the end of the Eastern Han dynasty, Thus, it can provide evidence for the study on the source of herbs and formulas in Shanghan Zabing Lun.

China↗

PubMed2006

[Bamboo joint-like appearance of stomach in Korean patients with Crohn's disease].

BACKGROUND/AIMS: Bamboo joint-like (BJL) appearance is an endoscopic finding characterized by swollen longitudinal folds transversed by erosive fissures or linear furrows on the lesser curvature side of gastric body and cardia. It has been reported to be associated with Crohn's disease (CD). This study was aimed to evaluate the incidence of BJL appearance in Korean patients with CD. METHODS: From January to December in 2005, we performed esophagogastroduodenoscopy (EGD) in patients diagnosed as CD and ulcerative colitis (UC) in our hospital. Non-inflammatory bowel disease (IBD) subjects with upper gastrointestinal symptoms who underwent EGD were consecutively enrolled during the same period. One endoscopist performed all the endoscopic examinations to avoid inter-observer variation. A dye-spraying technique with 0.4% indigocarmine was used to allow the detection of subtle changes during the endoscopic examination. RESULTS: A total of 21 patients with CD (mean age+/-SD, 40+/-15 yr; M/F, 13/8), 28 patients with UC (42+/-15 yr; 21/7), and 685 non-IBD subjects (49+/-14 yr; 354/331) were enrolled. EGD findings in CD patients were gastric erosions (11/21), chronic superficial gastritis (5/21), chronic atrophic gastritis (1/21), duodenal erosions or ulcers (2/21), and normal (2/21). Incidence of BJL appearance was significantly higher in patients with CD (47.6%, 10/21) than others (UC, 3.6%, 1/28; non-IBD, 0.1%, 1/685) (p< 0.0001). Among patients with CD, incidence of BJL appearance was not significantly different according to the sex, status of H. pylori infection, Vienna classification for phenotype, medications or EGD findings. CONCLUSIONS: BJL appearance on the gastric body and cardia can be a diagnostic clue to CD.

Adult↗

PubMed1990

Histo-chemical studies on the anti-ulcer effect of bamboo grass in rats.

Oral administration of a hot-water extract (Folin) of bamboo grass (Sasa albomarginata Makino & Shibata) significantly reduced the incidence of water-immersion and restraint stress-, ethanol-induced and indomethacin-induced gastric ulcers in rats. Histological examination of the Folin-treated gastric mucosa showed that microscopic blood clots overlaid the superficial epithelium, maintaining the cellular integrity of gastric mucosa, especially against stress ulcer. In addition, Folin suppressed the incidence of hyperaemia and a decline of acid mucopolysaccharides in the ethanol-induced ulcer. Folin suppressed a release of histamine from rat mast cells, and stabilized erythrocytes and accelerated their agglutination under acid conditions. These results suggest that a microscopic haemostatic effect of Folin reinforced by a membrane-stabilizing effect might be responsible for the prevention of the gastric lesions.

Administration, Oral↗

PubMed1981

[Antitumor activities of bamboo leaf extracts (BLE) and its lignin (BLL)].

Antitumor activity of bamboo leaf against various transplantable mouse tumor strains, such as Sarcoma 180 and Ehrlich ascites carcinoma has previously been demonstrated by Sakai et al.7) and Yammamoto et al.9). The present investigation was undertaken to determine the antitumor activities of BLE and BLL against the spontaneous tumor induced by benzopyrene (BP) and 4-nitroquinoline-1-oxide (4NQO) in mice and rats. The possible mechanism of antitumor action was also discussed as related to Kada's Rec-assay and Ames test in vitro. The in vivo antitumor test was performed using 16 groups of mice given the following solutions ad libitum for 120 days; Groups 1-4, 5-8, 9-12 and 13-16 were given water, 1% and 10% BLe, 0.1% BLL, and each respective group was treated with no injection (control), oil/s.c., BP 1 mg/s.c., and 4NQO 0.5 mg/s.c. Rat respective group was treated 30 days after in initiation of experiment with no injection (control), oil/s.c., BP 2.4 mg/s.c. Antitumor activities of the BLE and BLL were determined by the tumor incidence index and average weight of tumor. In vitro Rec-assay, cold incubation method, and Ames test were performed in the usual manner. Antitumor activity against BP induced tumor was the highest with 1.0% BLE (0.71 mg/ml), but no significant difference was found between the groups of the 10% BLE, 0.1% BL and control. A weak trend toward DNA damage was seen in the case of BLE, in the Rec-assay. His+ revertants with S-9 mix on Salmonella typhimurium TA98 were found in the case of BLL. It was concluded that antitumor activity against BP- and 4NQO-induced tumors was the highest with 1% BLE (0.71 mg/ml), and a direct action of BLE on tumor cells was indicated.

4-Nitroquinoline-1-oxide↗

PubMed1994

Field studies on populations of Aedes albopictus and Toxorhynchites species in bamboo pots in Malaysia.

Between April 1987 and March 1988, populations of immature Aedes albopictus and Toxorhynchites spp. in bamboo pots were sampled weekly. Populations of Ae. albopictus and rainfall varied from month to month. During the heavy rainfall months of September and October 1987, larval counts of Ae. albopictus were high, between 30.8 and 49.2 larvae per week compared to 16 larvae per week during the low rainfall month of January 1988. A higher population of Toxorhynchites spp. was associated with a low population of the vector.

Aedes↗

PubMedDate not supplied

Effects of Sasa Health, extract of bamboo grass leaves, on spontaneous mammary tumourigenesis in SHN mice.

Chronic treatment with Sasa Health, extract of bamboo grass leaves obtained by alkaline hydrolysis, in drinking water at the concentration of 0.044%-0.088% Fe-Chlorophyllin Na resulted in the significant inhibition of both development and growth of spontaneous mammary tumours in a high mammary tumour strain of SHN virgin mice. Limited treatment for 12 days in mice with palpable sizes of mammary tumours also markedly retarded the growth of the tumours. The end-bud formation and thymidylate synthetase activity of normal mammary glands were stimulated, but the formation of preneoplastic mammary hyperplastic alveolar nodules was inhibited by the treatment. Chronic ingestion of Sasa Health stimulated the excretion of urine components and decreased and increased the prolactin level and superoxide dismutase activity in serum, respectively. It showed no deleterious effects on food and water intake, body growth and any external appearance and all findings indicate that Sasa Health could be a promising agent for the protection and therapy of breast and other types of tumours.

Animals↗

PubMed1951