Ukurasa 1 kutoka 475 matokeo
In cancer therapy the platinum-based drugs are used frequently with a good clinical outcome, but besides unwanted side effects which occur, the tumour cells subjected to treatment are prone to develop tolerance or even multidrug resistance (MDR). Metal compounds with a central atom other than
Twenty pediatric patients with malignant disease were studied by whole body gallium scans. Seven had Hodgkin's disease, five had soft tissue sarcomas, three had neuroblastomas, two had Wilm's tumors, and one each had a hepatoblastoma, embryonal cell carcinoma, and sacrococcygeal teratoma. Of 50
Gallium-67 has been a controversial tumor-imaging agent in nuclear medicine for decades. This controversy centers on why tumors are variable in gallium-avidity, whether 67Ga uptake is a transferrin-independent or dependent process, and whether tumors and normal tissues differ in mechanism of uptake.
The current enthusiasm for gallium (Ga) citrate as a tumor imaging agent reflects the need of clinical medicine for a good tumor imaging agent. To date, Ga-67 is probably the best tumor imaging agent available for clinical use. Initially, Ga-67 was investigated for its bone scanning potential. In
Increasing interest in the short-lived radionuclide 68Ga (t1/2: 68.2 min) has revived basic studies of gallium radiopharmaceuticals. Ga-citrate (Ga-cit), described as a polynuclear complex, possesses great affinity for tumor cells but is also bound by blood transferrin (Tf). Exploitation of
Since its introduction in 1969, 67Ga has become the most widely employed tumor-scanning agent in nuclear medicine. While 67Ga is far from being the ideal tumor-scanning agent, it remains the best available isotope for this purpose. Gallium-67-citrate has been found to be of value in the staging and
The high incidence of gallium 67 accumulation in lung cencer has made radioistope scanning with this agent useful in identifying the extent of cancer locally. However, we investigated the usefulness of whole-body gallium 67 scanning, compared with physical examination, bone, liver and brain scans,
BACKGROUND
At present 67Ga can be considered one of the most widely used viability radiotracers. There is general consensus in the literature that 67Ga has the highest clinical value in the management of lymphoma patients.
METHODS
We critically discuss the role of gallium scintigraphy in lymphoma
Neuroendocrine tumours (NET) are rare tumours that occur most commonly in the GI tract. Various labelled somatostatin analogues are used to image NET expressing somatostatin receptors (SSTR). In traditional nuclear medicine, most peptides used in imaging NET have been labelled with indium-111, the
Deriving from the principle of direct tumor visualization and the beginnings of positive imaging of malignant tumors, radiotracers with tumor affinity are distinguished by those with tumor-specific and non-specific uptake. With special regard to the tumor-specific localization of thyroid carcinomas
We report the feasibility of tumor detection and delineation in vivo using multimode optical imaging of targeted gallium corrole (HerGa). HerGa is highly effective for targeted HER2+ tumor elimination in vivo, and it emits intense fluorescence. These unique characteristics of HerGa prompted us to
For over 15 years, the MVAC regimen (methotrexate/vinblastine/doxorubicin/cisplatin) has been standard chemotherapy for patients with unresectable or metastatic bladder cancer. The taxanes and gemcitabine have provided new treatment options, but development of more effective regimens is needed.
Gallium nitrate, a novel drug for the treatment of cancer-related hypercalcaemia, inhibits osteoclast activity but does not affect osteoclast morphology or viability. Limited clinical experience in patients with cancer-related hypercalcaemia indicates that gallium nitrate is effective in restoring
Secondary hormonal manipulations are common following the failure of combined androgen blockade in patients with metastatic prostate cancer. Ketoconazole has been shown to have activity in this disease by inhibiting cytochrome P450 steroid hormone biosynthesis, thus inducing androgen deprivation.
Fifty-five patients with metastatic non-small cell lung cancer (NSCLC) were entered into this phase II randomized study for evaluating three new agents: gallium nitrate, amonafide and teniposide. The patients had to have ECOG performance status 0 or 1, no prior chemotherapy, and adequate