instruction:
Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).
question:
Abstract: The electromagnetic spectrum consists of radiant energy that is classified according to specific wavelengths. Man is constantly exposed to a portion of the electromagnetic spectrum, particularly to radiation in the ultraviolet, visible and infrared regions. The tissues of the eye and skin are particularly sensitive to the non-ionizing wavelengths of radiant energy. Although both tissues possess endogenous protective mechanisms to minimize the effects of such exposure, problems still occur due to the absorption of radiation. The cornea, lens and retina have been shown to be susceptible to damage from light in the ultraviolet, visible and infrared range. Part I of this two-part article examines the structures of the eye that are most susceptible to light damage; part II, which will be published in the next issue of the Journal, focuses on eye protection.
Which is the apt title for the abstract? option1: The potential damaging effects of light on the eye (Part I). option2: Increased compound 48/80 induced local histamine release from nonlesional skin of patients with chronic urticaria.
answer:
The potential damaging effects of light on the eye (Part I).

question:
Abstract: Failure of the muscle to regenerate successfully is an important feature of the pathology of Duchenne muscular dystrophy (DMD). It is known that this is not due to a numerical reduction in the population of satellite cells. We have therefore examined the ultrastructural composition of the satellite cells in 25 DMD cases and compared them with satellite cells from normal subjects and from polymyositis patients to try to identify morphological features that might be associated with an impaired developmental competence. Profiles of randomly and serially sectioned satellite cells were analyzed stereologically to obtain nuclear and cytoplasmic areas. Within the cytoplasm, the areas occupied by mitochondria, rough endoplasmic reticulum (RER), and Golgi apparatus were measured. Micropinocytotic vesicles (MPVs) at the periphery of the cells were counted. The nucleus to cytoplasm ratios and mitochondrial, RER, and Golgi volume fractions were not significantly different in the three satellite cell samples. The cells in the DMD sample contained more MPVs than those in the normal subjects. This is attributed to a generalized cell response to a physiologically altered environment in the diseased muscle.
Which is the apt title for the abstract? option1: A quantitative comparison of satellite cell ultrastructure in Duchenne muscular dystrophy, polymyositis, and normal controls. option2: Peroneal tendon injuries: CT analysis.
answer:
A quantitative comparison of satellite cell ultrastructure in Duchenne muscular dystrophy, polymyositis, and normal controls.

question:
Abstract: A method is described to measure reproducibly stiffness, and therefore "tone", at the elbow of patients with Parkinson's disease using a torque motor. In Parkinsonian versus normal patients (previously reported) it was observed that: the neutral angle in Parkinson's disease patients was significantly smaller (92 degrees +/- 15 degrees) than in normals (107 degrees +/- 10 degrees), and in Parkinson's disease patients, even with relatively mild symptoms, the upper limb was stiffer than normals in the totally relaxed state with no electromyographic activity present. Our results suggest that changes in the passive mechanical properties of the upper limb affected by Parkinsonian rigidity may have taken place, accounting for the more flexed neutral elbow angle and greater passive stiffness. Using this technique, response to antirigidity therapy and natural progression of illness can be quantitatively assessed and followed.
Which is the apt title for the abstract? option1: Elastic properties of muscles measured at the elbow in man: II. Patients with parkinsonian rigidity. option2: Arteriovenous malformation presenting as hemidystonia.
answer:
Elastic properties of muscles measured at the elbow in man: II. Patients with parkinsonian rigidity.