Chem

Chemists create 'Superbowl' molecule; May lead to better health

In a development that could one day score a touchdown for better health, chemists in Australia have created a "superbowl" molecule that shows promise for precision drug delivery, according to a recent study in the Journal of the American Chemical Society. Shaped like a miniature football stadium, the molecule is capable of delivering a wide range of drugs ?from painkillers to chemotherapy cocktai...

Adding Radiation Therapy To Chemotherapy Improves Survival In Patients With High-risk Breast Cancer

For patients with high-risk breast cancer treated with radical mastectomy and adjuvant chemotherapy, the addition of radiation therapy leads to better survival outcomes with few long-term toxic effects, according to a 20-year follow-up of a randomized trial, which appears in the January 19 issue of the Journal of the National Cancer Institute. The British Columbia randomized radiation the...

BRCA1 causes ovarian cancer through indirect, biochemical route

Mutated BRCA1 genes cause ovarian cancer indirectly, by interfering with the biochemical signals one ovarian cell sends to another, according to a team of researchers led by scientists at the USC/Norris Comprehensive Cancer Center and the Keck School of Medicine of the University of Southern California. Their work is being published in the March 29 issue of the journal Current Biology.</p...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

Parrots, long a favorite pet animal, are attractive to owners because of their vibrant colors. But those colors may mean more to parrots than what meets the eye. For more than a century, biochemists have known that parrots use an unusual set of pigments to produce their rainbow of plumage colors, but their biochemical identity has remained elusive. Now, an Arizona State University researc...

Study shows nanoshells ideal as chemical nanosensors

'Nanoshells' enhance sensitivity to chemicaldetection by factor of 10 billionNew research published in the Proceedings of the National Academy ofScience finds that tailored nanoparticles known as nanoshells canenhance chemical sensing by as much as 10 billion times. That makesthem about 10,000 times more effective at Raman scattering thantraditional methods. Whenmolecules and materi...

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Chem at Biology Products

15(S)-HEDE from Cayman Chemical

Description:15(S)-HEDE is produced from 11Z,14Z-eicosadienoic acid by 15-LO. 15(S)-HEDE is an inhibitor of RBL-1 cell 5-LO with an IC50 value of 26 µM....
Company:Cayman Chemical

15(S)-15-methyl Prostaglandin F2alpha from Cayman Chemical

Description:15(S)-15-methyl PGF2α is a metabolically stable analog of PGF2α. It is a potent uterine stimulant and abortifacient which can be administered intramuscularly to induce labor. It induces luteolysis and reduces serum progesterone concentrations when given as an intramuscular injection in non-pregnant rhesus monkeys....
Company:Cayman Chemical

S. cerevisiae Direct Transformation Kit from Wako Chemicals USA, Inc.

Description:This kit is designed for easy transformation of the budding yeast, Saccharoyces sp.. The protocol allows for successful transformation simply by mixing a plasmid DNA and the kit reagents with cultured yeast cells. No complicated steps, such as centrifugation or cell washing, are required. The kit is particularly well suited for high-throughput transformation of a large number of yeast strains gro...
Company:Wako Chemicals USA, Inc.

S. cerevisiae Direct Transformation Kit from Wako Chemicals USA, Inc.

Description:This kit is designed for easy transformation of the budding yeast, Saccharoyces sp.. The protocol allows for successful transformation simply by mixing a plasmid DNA and the kit reagents with cultured yeast cells. No complicated steps, such as centrifugation or cell washing, are required. The kit is particularly well suited for high-throughput transformation of a large number of yeast strains gro...
Company:Wako Chemicals USA, Inc.

Cleland’s Reagent from Calbiochem

Description:Contaminants: Heavy metals: ≤1 ppm.<...
Company:Calbiochem

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Chem at Biology Technology

Imaging Chemiluminescent Western Blots

II still video system to directly acquireimages from chemiluminescent blots Stratagene II still video system is well suited for directimaging of chemiluminescent Western blots. The light-tight cabinet is ideal forthe longer exposure times necessary to...

Chemical Stability of Disposables

Disposables such as Eppendorf Tubes and pipette tips are frequently exposed to chemical reactions and they must withstand the various kinds of stress and strain encountered in everyday laboratory work (such as centrifuging and autoclaving). The stability level of these products is largely determined by the materials fr...

Chemical Stability of the Brinkmann Bottletop Dispenser and the Brinkmann Bottletop Buret

Bottletop Dispenser and the Brinkmann Bottletop Buret Bottletop dispensers are used in the lab for dispensing a wide range of different solvents from glass or stainless steel containers. These dispensers have to meet various requirements. For example, they must not give...

Quantitative Measurement of Cell Proliferation Using the BrdU ELISA: A Comparison Between Colorimetric and Chemiluminescent Detection

Quantitative determination of DNA synthesis in cellcultures is now a routine procedure in many laboratories.Protocols are available for various applications,especially in cell culture systems. The effects of growthfactors, inhibition of cell division by exogenous factor...

Efficient Delivery of siRNAs to Human Primary Cells: Electroporation vs. Chemical Transfection

(Research Associate II, Ambion, Inc.) Gene silencing using small interfering RNAs (siRNAs) has become a powerful method for studying gene function. Human primary cells are often desired for such experiments because they are mor...

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Chem at Biology Definition

Chemautotrophic

An that obtains its carbon from carbon dioxide using the oxidation of inorganic chemical compounds. heter...

Chemiosmotic hypothesis

to cre...

Biochemistry

by <a href="/ ?q=/ Biology-Definition/ Enzymes...

Chem at Biology Dictionary

Chemoreceptors

pigmen...

Chemiosmosis

Testing the che...

Biochemistry

in these other data<a...

Biochemical

of degradative events in <a href="/ ?q=/ Biology-Dictionar...

Chem at Medicine News

Acupuncture May Help Chemotherapy Side Effects

Oriental medical practice of Acupuncture along with commonly used medications may help ease the distressing and disabling side effects of chemotherapy for breast cancer patients, if researchers at National Institute of Health (NIH) are to be believed. According to Dr. Joannieshen MD, MPH, research associate at NIH, electro-acupuncture was more effective in controlling vomiting than...

Chemists prepare for face-off with manufacturers

There is new war brewing! Neither in the devastated NewYork of America nor in the Afghanistan! It is right here in the commercial capital of India --- Mumbai. And who are the warring parties? They are the pharmaceutical industry of the country and the RDCA or the Retail & Dispensing Chemists Association. The latter is a member body of over 5,000 retail druggists & chemists spread across t...

The Benefits Of Chemotherapy For Women With Ovarian Cancer

Researchers have found that chemotherapy improves survival and reduces the risk of recurrence in women with stage I ovarian cancer // (cancer that has not spread beyond the ovary). About one quarter of all ovarian cancers are caught while confined to the ovaries, when five-year survival is 85 percent. Most doctors may prefer not to offer chemotherapy for their patients, since eight in 10...

NHS financial crisis may lead to roll back of flexi-work scheme and private acquisition

Deficit in NHS fund has lead to cancellation of subsidized flexible working for NHS doctors, the part-time flexible working scheme which was introduced four years back by the Government is being rolled back// due to financial crisis in the NHS fund. The Private hospitals have also showed interest to acquisition of NHS funded government hospitals which are working in a horrible situation d...

New UK Policy Threatens The Flexible Working Scheme

The British Medical Association (BMA) said that the financial crisis would put an end to the new scheme, which helps the lady doctors wanting to work part-time after childbirth. // This scheme comes under the National Health Center (NHS). But ministers are posing a threat to stop the scheme and transferring the powers to the regional health bosses. This move was taken mainly...

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Chem at Medicine Products

Aeroset Clinical Chemistry System

Description:Aeroset was designed with a whole new level of speed, intelligence and flexibility. Aeroset performs up to 2,000 tests per hour-a higher level of throughput, which translates to an even higher level of efficiency and patient turn-around time. Consider Aeroset's highly advanced software control that allows for easy to use multi-view screens with automated testing functions to help you work more ef...
Company:Abbott Diagnostics

Advia 1650 Chemistry System

Description:The ADVIA 1650 has minimal requirements for sample volume (as low as 2 L/test), reagent consumption (as low as 80 L/test) and water consumption (25 L/hour) - thus maximizing management efficiency. A rapid, 3-second cycle and system throughput of up to 1650 tests/hour provide powerful high-speed performance, ensure...
Company:Siemens Medical Solutions Diagnostics

Advia 2400 Chemistry System

Description:The ADVIA 2400 Chemistry System pushes your laboratorys productivity levels while maintaining the reliability and stability that keep you up and running. A rapid 2-second probe cycle time maximizes tube speed and test throughput, and combined with the systems efficient automation-readiness, gives you the turnaround time your high-volume laboratory needs....
Company:Siemens Medical Solutions Diagnostics

Express Plus Clinical Chemistry Analyzer

Description:The Express Plus clinical chemistry analyzer is a fully automated walk away system designed for maximum productivity, convenience and reliability....
Company:Siemens Medical Solutions Diagnostics

Dimension RxL Max™ Integrated Chemistry System 50/60HZ

Description:The Dimension RxL Max is an integrated chemistry system and is the most powerful and technologically advanced Dimension analyze with new standard for excellence in clinical diagnostics. Simply put, the best maxed....
Company:Dade Behring, Inc.

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Chem at Medicine Technology

In Vitro and In Vivo Data Show Alfacell's Onocanse is Active Against Naive and Chemoresistant Neuroblastoma Cells

Pre-Clinical Results Demonstrate Potential of ONCONASE forTreatment of Neuroblastoma BLOOMFIELD, N.J., June 27, 2007 /PRNewswire-FirstCall/ --Alfacell Corporation today announced that new data show ONCONASE,the company's lead drug candidate, is active against naive andchemoresistant neuroblastoma cells. The pre-clinical in vitro and in vivo data published in CancerLetters (2007; Vo...

Pharmacyclics Announces Interim Results From Two Ongoing Phase 2 Trials Supporting Potential of Xcytrin Plus Chemotherapy to Treat Recurrent Non-Small Cell Lung Cancer

WAILEA, Hawaii and SUNNYVALE, Calif., June 27, 2007/PRNewswire-FirstCall/ -- Pharmacyclics, Inc. today announcedpreliminary results from two open-label, multi-center Phase 2clinical trials supporting the potential use of Xcytrin(R)(motexafin gadolinium) Injection, the company's lead productcandidate, in combination with Alimta(R) (pemetrexed) and incombination with Taxotere(R) (docetaxel...

Vastox Awarded £400,000 Grant to Support R&D at Carbohydrate Chemistry Facility

OXFORD, England, 20 June 2007 - VASTox plc (AIM: VOX), a leadingUK biotechnology company, announces that it has been awarded agrant of £400,000 by the Welsh Development Agency(”WDA”) under the SMARTCymru scheme. The grant,which runs for 12 months, will support the research and developmentwork undertaken at VASTox’s Aberystwyth facility and providesrecognition of...

Malvern initiates European user group meetings for chemical imaging

WORCESTERSHIRE , England, 21 June 2007, Malvern Instruments hasheld the inaugural meeting in Europe for users of the company'snear infrared chemical imaging (NIR-CI) systems. The one-day event,which took place on 13 June 2007 was hosted by AstraZeneca inMacclesfield, UK. Malvern customers from some of the world's majorpharmaceutical companies joined Malvern's technical and scientificteam...

ConjuChem Biotechnologies Reports PC-DAC:Exendin-4 Albumin Conjugate Data Presented at American Diabetes Association Annual Meeting

MONTREAL, June 19 /CNW/ - ConjuChem Biotechnologies (TSX:CJB)today announced that data relating to its proprietaryPC-DAC(TM):Exendin-4 Albumin Conjugate for the treatment ofType 2 diabetes will be presented at the 67th ScientificSessions of the American Diabetes Association (ADA) to beheld June 22-26, 2007 in Chicago, IL. The ADA's annualScientific Sessions meeting is one of the larges...

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Chem at Medicine Dictionary

Urine chemistry

Uri...

Transient ischemic attacks

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Phytochemicals

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Multiple Chemical Sensitivity

MULTIPLE CHEMICAL SENS...

Ischemic cardiomyopathy

Ischemic cardiomyo...

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