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Neuron | Volume 32 of Issue 3

A visual pigment expressed in both rod and cone photoreceptors.

2001

Authors: Ma J, Znoiko S, Othersen KL, Ryan JC, Das J, Isayama T, Kono M, Oprian DD, Corson DW, Cornwall MC, Cameron DA, Harosi FI, Makino CL, Crouch RK

Rods and cones contain closely related but distinct G protein-coupled receptors, opsins, which have diverged to meet the differing requirements of night and day vision. Here, we provide evidence for an exception to that rule. Results from immunohistochemistry, spectrophotometry, and single-cell RT-PCR demonstrate that, in the tiger salamander, the green rods and blue-sensitive cones contain the same opsin. In contrast, the two cells express distinct G protein transducin alpha subunits: rod alpha transducin in green rods and cone alpha transducin in blue-sensitive cones. The different transducins do not appear to markedly affect photon sensitivity or response kinetics in the green rod and blue-sensitive cone. This suggests that neither the cell topology or the transducin is sufficient to differentiate the rod and the cone response.

Circulation

Hormone therapy and in-hospital survival after myocardial infarction in postmenopausal women.

2001

Authors: Shlipak MG, Angeja BG, Go AS, Frederick PD, Canto JG, Grady D

The journals of gerontology. Series A, Biological sciences and medical sciences

Reduced employment in caregivers of frail elders: impact of ethnicity, patient clinical characteristics, and caregiver characteristics.

2001

Authors: Covinsky KE, Eng C, Lui LY, Sands LP, Sehgal AR, Walter LC, Wieland D, Eleazer GP, Yaffe K

Transplantation proceedings

Solid organ transplantation in HIV-positive patients.

2001

Authors: Stock P, Roland M, Carlson L, Freise C, Hirose R, Terrault N, Frassetto L, Coates T, Roberts J, Ascher N

American journal of public health

Predictors and prevention of nonfatal overdose among street-recruited injection heroin users in the San Francisco Bay Area, 1998-1999.

2001

Authors: Seal KH, Kral AH, Gee L, Moore LD, Bluthenthal RN, Lorvick J, Edlin BR

Journal of acquired immune deficiency syndromes (1999)

Trends in HIV seroprevalence and risk among gay and bisexual men who inject drugs in San Francisco, 1988 to 2000.

2001

Authors: Bluthenthal RN, Kral AH, Gee L, Lorvick J, Moore L, Seal K, Edlin BR

TO REMOVE

Spiral computed tomography angiography (CTA): technique for renal artery stenosis not associated with increased risk of contrast nephropathy in patients with renal insufficiency.

2001

Authors: Carmen Garcia-Ruiz, A Martinez-Vea, T Sempere, A Sauri, C Peralta, M Olona, A Oliver

Journal of the American College of Cardiology

Hormone therapy and the risk of stroke after acute myocardial infarction in postmenopausal women.

2001

Authors: Angeja BG, Shlipak MG, Go AS, Johnston SC, Frederick PD, Canto JG, Barron HV, Grady D

The Journal of experimental zoology

Sry promoters from domesticus (Tirano) and C57BL/6 mice function similarly in embryos and adult animals.

2001

Authors: Xian M, Zhang J, Lau YF

The Journal of experimental zoology

Characterization of the Xp21-23 region in the wood lemming, a region involved in XY sex reversal.

2001

Authors: Liu WS, Nordqvist K, Lau YF, Fredga K