TDN345

Cat. No.: HY-101669: FAQs
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TDN345 is a Ca²⁺ antagonist, used for the treatment of vascular and senile dementia including Alzheimer's disease.

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TDN345 Chemical Structure

CAS No. : 134069-68-4

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N-type calcium channel L-type calcium channel P/Q-type calcium channel T-type calcium channel Calcium Channel

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Description	TDN345 is a Ca²⁺ antagonist, used for the treatment of vascular and senile dementia including Alzheimer's disease.
In Vitro	TDN-345 (10 μM) significantly increases the intracellular NGF content in the time-course study. TDN-345 induces NGF synthesis/secretion at the concentrations of 0.1 μM; statistically significant at 1 μM. The ED₅₀ is 0.88 μM^[1]. MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. TDN345 Related Antibodies
In Vivo	TDN-345 (0.1-1.0 mg/kg, p.o.) dose-dependently decreases the mortality and ischemic neurological deficit score when administered orally twice, 60 min before ischemia and 90 min after recirculation. Additionally, TDN-345 (0.2 or 1.0 mg/kg, p.o. once daily for 3 weeks after the onset of stroke) decreases the mortality and recurrence of stroke in SHRSP^[2]. MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Molecular Weight	468.58
Formula	C₂₈H₃₄F₂N₂O₂
CAS No.	134069-68-4
SMILES	O=C(N1C(C)(C)C)OC2(CCN(CCCC(C3=CC=C(F)C=C3)C4=CC=C(F)C=C4)CC2)C1=C
Shipping	Room temperature in continental US; may vary elsewhere.
Storage	Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation	Data Sheet (271 KB) Handling Instructions (2659 KB)
References	[1]. Fukumoto H, et al. The novel compound TDN-345 induces synthesis/secretion of nerve growth factor in C6-10A glioma cells. Brain Res. 1997 Nov 7;774(1-2):87-93. [Content Brief] [2]. Nakayama T, et al. Beneficial effects of TDN-345, a novel Ca2+ antagonist, on ischemic brain injury and cerebral glucose metabolism in experimental animal models with cerebrovascular lesions. Brain Res. 1997 Jul 11;762(1-2):203-10. [Content Brief]

Animal Administration
^[2]

Male Mongolian gerbils (50-70 g body weight) are anesthetized lightly by ether inhalation. A 1-2 cm midline throat incision provided access to both carotid arteries, which are clamped with microaneurysm clamps immediately after recovery from anesthesia. Sixty minutes before occlusion, TDN-345 (0.3 or 1.0 mg/kg suspended in a 5% gum arabic solution or 0.1 or 0.3 mg/kg with 1% NaHCO3 suspended in a 5% gum arabic solution) or vehicle is administered orally. After 15 min of bilateral carotid artery occlusion, the clamps are removed. Ninety minutes after reperfusion, TDN-345 or vehicle is again administered orally. The body temperature is maintained at 37°C during the experimental period using a heating pad. The experiments are performed in nine to 15 animals in each group. Animal survival is observed 8 h and 7 days after reperfusion, and neurological signs are evaluated according to the scoring system as an ischemic neurological score for 5 h after the ischemic insult from an area under the time-neurological deficit score curve (AUC_{reperfusion (0-300 min)}) (hair roughed up or tremor, obtunded, paucity of move, 1; ptosis, seizure, 2; head cocked, eyes fixed open, splayed out hind limbs, extreme rotation, circling behavior, rolling seizure, 3; coma, 6; death, 34). Nine to 15 animals are used in each experimental group.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References

[1]. Fukumoto H, et al. The novel compound TDN-345 induces synthesis/secretion of nerve growth factor in C6-10A glioma cells. Brain Res. 1997 Nov 7;774(1-2):87-93. [Content Brief]

[2]. Nakayama T, et al. Beneficial effects of TDN-345, a novel Ca2+ antagonist, on ischemic brain injury and cerebral glucose metabolism in experimental animal models with cerebrovascular lesions. Brain Res. 1997 Jul 11;762(1-2):203-10. [Content Brief]

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Neurological Disease

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Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

TDN345134069-68-4TDN 345TDN-345Calcium ChannelCa2+ channelsCa channelsInhibitorinhibitorinhibit

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TDN345

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